AnatomyOrganismsDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPhenomena and ProcessesInformation ScienceHealth Care
HairHair FollicleHair Cells, AuditoryHair ColorHair DiseasesHair Cells, Auditory, InnerHair RemovalHair DyesHair Cells, VestibularHair Cells, Auditory, OuterHair PreparationsAlopeciaSaccule and UtricleCochleaOrgan of CortiScalpStereociliaEar, InnerHair Cells, AmpullaHair Bleaching AgentsKeratins, Hair-SpecificHypotrichosisMechanotransduction, CellularLabyrinth Supporting CellsPlant RootsEpidermisSebaceous GlandsEctodysplasinsLateral Line SystemMinoxidilKeratinsMelaninsKeratinocytesDermisRana catesbeianaMechanoreceptorsKeratins, Type IISpiral GanglionMicroscopy, Electron, ScanningEvoked Potentials, Auditory, Brain StemFibroblast Growth Factor 5RegenerationSkin PigmentationSkinSkin AgingSkin DiseasesSkin NeoplasmsSkin Physiological PhenomenaSkin TestsSodium HypochloriteEncyclopedias as TopicChlorine CompoundsChlorineGreenhouse EffectDioxinsHydrocarbons, Chlorinated
Hair: A filament-like structure consisting of a shaft which projects to the surface of the SKIN from a root which is softer than the shaft and lodges in the cavity of a HAIR FOLLICLE. It is found on most surfaces of the body.Hair Follicle: A tube-like invagination of the EPIDERMIS from which the hair shaft develops and into which SEBACEOUS GLANDS open. The hair follicle is lined by a cellular inner and outer root sheath of epidermal origin and is invested with a fibrous sheath derived from the dermis. (Stedman, 26th ed) Follicles of very long hairs extend into the subcutaneous layer of tissue under the SKIN.Hair Cells, Auditory: Sensory cells in the organ of Corti, characterized by their apical stereocilia (hair-like projections). The inner and outer hair cells, as defined by their proximity to the core of spongy bone (the modiolus), change morphologically along the COCHLEA. Towards the cochlear apex, the length of hair cell bodies and their apical STEREOCILIA increase, allowing differential responses to various frequencies of sound.Hair Color: Color of hair or fur.Hair Diseases: Diseases affecting the orderly growth and persistence of hair.Hair Cells, Auditory, Inner: Auditory sensory cells of organ of Corti, usually placed in one row medially to the core of spongy bone (the modiolus). Inner hair cells are in fewer numbers than the OUTER AUDITORY HAIR CELLS, and their STEREOCILIA are approximately twice as thick as those of the outer hair cells.Hair Removal: Methods used to remove unwanted facial and body hair.Hair Dyes: Dyes used as cosmetics to change hair color either permanently or temporarily.Hair Cells, Vestibular: Sensory cells in the acoustic maculae with their apical STEREOCILIA embedded in a gelatinous OTOLITHIC MEMBRANE. These hair cells are stimulated by the movement of otolithic membrane, and impulses are transmitted via the VESTIBULAR NERVE to the BRAIN STEM. Hair cells in the saccule and those in the utricle sense linear acceleration in vertical and horizontal directions, respectively.Hair Cells, Auditory, Outer: Sensory cells of organ of Corti. In mammals, they are usually arranged in three or four rows, and away from the core of spongy bone (the modiolus), lateral to the INNER AUDITORY HAIR CELLS and other supporting structures. Their cell bodies and STEREOCILIA increase in length from the cochlear base toward the apex and laterally across the rows, allowing differential responses to various frequencies of sound.Hair Preparations: Hair grooming, cleansing and modifying products meant for topical application to hair, usually human. They include sprays, bleaches, dyes, conditioners, rinses, shampoos, nutrient lotions, etc.Alopecia: Absence of hair from areas where it is normally present.Saccule and Utricle: Two membranous sacs within the vestibular labyrinth of the INNER EAR. The saccule communicates with COCHLEAR DUCT through the ductus reuniens, and communicates with utricle through the utriculosaccular duct from which the ENDOLYMPHATIC DUCT arises. The utricle and saccule have sensory areas (acoustic maculae) which are innervated by the VESTIBULAR NERVE.Cochlea: The part of the inner ear (LABYRINTH) that is concerned with hearing. It forms the anterior part of the labyrinth, as a snail-like structure that is situated almost horizontally anterior to the VESTIBULAR LABYRINTH.Organ of Corti: The spiral EPITHELIUM containing sensory AUDITORY HAIR CELLS and supporting cells in the cochlea. Organ of Corti, situated on the BASILAR MEMBRANE and overlaid by a gelatinous TECTORIAL MEMBRANE, converts sound-induced mechanical waves to neural impulses to the brain.Scalp: The outer covering of the calvaria. It is composed of several layers: SKIN; subcutaneous connective tissue; the occipitofrontal muscle which includes the tendinous galea aponeurotica; loose connective tissue; and the pericranium (the PERIOSTEUM of the SKULL).Stereocilia: Mechanosensing organelles of hair cells which respond to fluid motion or fluid pressure changes. They have various functions in many different animals, but are primarily used in hearing.Ear, Inner: The essential part of the hearing organ consists of two labyrinthine compartments: the bony labyrinthine and the membranous labyrinth. The bony labyrinth is a complex of three interconnecting cavities or spaces (COCHLEA; VESTIBULAR LABYRINTH; and SEMICIRCULAR CANALS) in the TEMPORAL BONE. Within the bony labyrinth lies the membranous labyrinth which is a complex of sacs and tubules (COCHLEAR DUCT; SACCULE AND UTRICLE; and SEMICIRCULAR DUCTS) forming a continuous space enclosed by EPITHELIUM and connective tissue. These spaces are filled with LABYRINTHINE FLUIDS of various compositions.Hair Cells, Ampulla: Sensory cells in the ampullary crest of each of the semicircular ducts, with their apical STEREOCILIA embedded in a wedge-shaped gelatinous cupula. These hair cells sense the movement of ENDOLYMPH resulting from angular acceleration of the head, and send signals via the VESTIBULAR NERVE to the brain to maintain balance.Hair Bleaching Agents: Chemicals that are used to oxidize pigments in HAIR.Keratins, Hair-Specific: Keratins that are specific for hard tissues such as HAIR; NAILS; and the filiform papillae of the TONGUE.Hypotrichosis: Presence of less than the normal amount of hair. (Dorland, 27th ed)Mechanotransduction, Cellular: The process by which cells convert mechanical stimuli into a chemical response. It can occur in both cells specialized for sensing mechanical cues such as MECHANORECEPTORS, and in parenchymal cells whose primary function is not mechanosensory.Labyrinth Supporting Cells: Cells forming a framework supporting the sensory AUDITORY HAIR CELLS in the organ of Corti. Lateral to the medial inner hair cells, there are inner pillar cells, outer pillar cells, Deiters cells, Hensens cells, Claudius cells, Boettchers cells, and others.Plant Roots: The usually underground portions of a plant that serve as support, store food, and through which water and mineral nutrients enter the plant. (From American Heritage Dictionary, 1982; Concise Dictionary of Biology, 1990)Epidermis: The external, nonvascular layer of the skin. It is made up, from within outward, of five layers of EPITHELIUM: (1) basal layer (stratum basale epidermidis); (2) spinous layer (stratum spinosum epidermidis); (3) granular layer (stratum granulosum epidermidis); (4) clear layer (stratum lucidum epidermidis); and (5) horny layer (stratum corneum epidermidis).Sebaceous Glands: Small, sacculated organs found within the DERMIS. Each gland has a single duct that emerges from a cluster of oval alveoli. Each alveolus consists of a transparent BASEMENT MEMBRANE enclosing epithelial cells. The ducts from most sebaceous glands open into a HAIR FOLLICLE, but some open on the general surface of the SKIN. Sebaceous glands secrete SEBUM.Ectodysplasins: Transmembrane proteins belonging to the tumor necrosis factor superfamily that play an essential role in the normal development of several ectodermally derived organs. Several isoforms of the ectodysplasins exist due to multiple ALTERNATIVE SPLICING of the MRNA for the protein. The isoforms ectodysplasin A1 and ectodysplasin A2 are considered biologically active and each bind distinct ECTODYSPLASIN RECEPTORS. Genetic mutations that result in loss of function of ectodysplasin result in ECTODERMAL DYSPLASIA 1, ANHIDROTIC.Lateral Line System: Aquatic vertebrate sensory system in fish and amphibians. It is composed of sense organs (canal organs and pit organs) containing neuromasts (MECHANORECEPTORS) that detect water displacement caused by moving objects.Minoxidil: A potent direct-acting peripheral vasodilator (VASODILATOR AGENTS) that reduces peripheral resistance and produces a fall in BLOOD PRESSURE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p371)Keratins: A class of fibrous proteins or scleroproteins that represents the principal constituent of EPIDERMIS; HAIR; NAILS; horny tissues, and the organic matrix of tooth ENAMEL. Two major conformational groups have been characterized, alpha-keratin, whose peptide backbone forms a coiled-coil alpha helical structure consisting of TYPE I KERATIN and a TYPE II KERATIN, and beta-keratin, whose backbone forms a zigzag or pleated sheet structure. alpha-Keratins have been classified into at least 20 subtypes. In addition multiple isoforms of subtypes have been found which may be due to GENE DUPLICATION.Melanins: Insoluble polymers of TYROSINE derivatives found in and causing darkness in skin (SKIN PIGMENTATION), hair, and feathers providing protection against SUNBURN induced by SUNLIGHT. CAROTENES contribute yellow and red coloration.Keratinocytes: Epidermal cells which synthesize keratin and undergo characteristic changes as they move upward from the basal layers of the epidermis to the cornified (horny) layer of the skin. Successive stages of differentiation of the keratinocytes forming the epidermal layers are basal cell, spinous or prickle cell, and the granular cell.Dermis: A layer of vascularized connective tissue underneath the EPIDERMIS. The surface of the dermis contains innervated papillae. Embedded in or beneath the dermis are SWEAT GLANDS; HAIR FOLLICLES; and SEBACEOUS GLANDS.Rana catesbeiana: A species of the family Ranidae (true frogs). The only anuran properly referred to by the common name "bullfrog", it is the largest native anuran in North America.Mechanoreceptors: Cells specialized to transduce mechanical stimuli and relay that information centrally in the nervous system. Mechanoreceptor cells include the INNER EAR hair cells, which mediate hearing and balance, and the various somatosensory receptors, often with non-neural accessory structures.Keratins, Type II: A keratin subtype that includes keratins that are generally larger and less acidic that TYPE I KERATINS. Type II keratins combine with type I keratins to form keratin filaments.Spiral Ganglion: The sensory ganglion of the COCHLEAR NERVE. The cells of the spiral ganglion send fibers peripherally to the cochlear hair cells and centrally to the COCHLEAR NUCLEI of the BRAIN STEM.Microscopy, Electron, Scanning: Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.Evoked Potentials, Auditory, Brain Stem: Electrical waves in the CEREBRAL CORTEX generated by BRAIN STEM structures in response to auditory click stimuli. These are found to be abnormal in many patients with CEREBELLOPONTINE ANGLE lesions, MULTIPLE SCLEROSIS, or other DEMYELINATING DISEASES.Fibroblast Growth Factor 5: A fibroblast growth factor that may play a role in regulation of HAIR FOLLICLE phenotype. Spontaneous mutation of the gene for this protein results in a strain of MICE with abnormally long hair, referred to as angora mice.Regeneration: The physiological renewal, repair, or replacement of tissue.Skin Pigmentation: Coloration of the skin.Skin: The outer covering of the body that protects it from the environment. It is composed of the DERMIS and the EPIDERMIS.Skin Aging: The process of aging due to changes in the structure and elasticity of the skin over time. It may be a part of physiological aging or it may be due to the effects of ultraviolet radiation, usually through exposure to sunlight.Skin DiseasesSkin Neoplasms: Tumors or cancer of the SKIN.Skin Physiological Phenomena: The functions of the skin in the human and animal body. It includes the pigmentation of the skin.Skin Tests: Epicutaneous or intradermal application of a sensitizer for demonstration of either delayed or immediate hypersensitivity. Used in diagnosis of hypersensitivity or as a test for cellular immunity.Sodium Hypochlorite: It is used as an oxidizing and bleaching agent and as a disinfectant. (From Grant & Hackh's Chemical Dictionary, 5th ed)Encyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Chlorine Compounds: Inorganic compounds that contain chlorine as an integral part of the molecule.Chlorine: A greenish-yellow, diatomic gas that is a member of the halogen family of elements. It has the atomic symbol Cl, atomic number 17, and atomic weight 70.906. It is a powerful irritant that can cause fatal pulmonary edema. Chlorine is used in manufacturing, as a reagent in synthetic chemistry, for water purification, and in the production of chlorinated lime, which is used in fabric bleaching.Greenhouse Effect: The effect of GLOBAL WARMING and the resulting increase in world temperatures. The predicted health effects of such long-term climatic change include increased incidence of respiratory, water-borne, and vector-borne diseases.Dioxins: Chlorinated hydrocarbons containing heteroatoms that are present as contaminants of herbicides. Dioxins are carcinogenic, teratogenic, and mutagenic. They have been banned from use by the FDA.Hydrocarbons, Chlorinated: Hydrocarbon compounds with one or more of the hydrogens replaced by CHLORINE.
AnatomyOrganismsDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPhenomena and ProcessesInformation ScienceHealth Care
HairHair FollicleHair Cells, AuditoryHair ColorHair DiseasesHair Cells, Auditory, InnerHair RemovalHair DyesHair Cells, VestibularHair Cells, Auditory, OuterHair PreparationsAlopeciaSaccule and UtricleCochleaOrgan of CortiScalpStereociliaEar, InnerHair Cells, AmpullaHair Bleaching AgentsKeratins, Hair-SpecificHypotrichosisMechanotransduction, CellularLabyrinth Supporting CellsPlant RootsEpidermisSebaceous GlandsEctodysplasinsLateral Line SystemMinoxidilKeratinsMelaninsKeratinocytesDermisRana catesbeianaMechanoreceptorsKeratins, Type IISpiral GanglionMicroscopy, Electron, ScanningEvoked Potentials, Auditory, Brain StemFibroblast Growth Factor 5RegenerationSkin PigmentationSkinSkin AgingSkin DiseasesSkin NeoplasmsSkin Physiological PhenomenaSkin TestsSodium HypochloriteEncyclopedias as TopicChlorine CompoundsChlorineGreenhouse EffectDioxinsHydrocarbons, Chlorinated
Benzoyl peroxideBenzoyl peroxide
Other common uses for benzoyl peroxide include Bleaching hair Tooth whitening systems The preparation of bleached flour As a ... Benzoyl peroxide, like most peroxides, is a powerful bleaching agent. Contact with fabrics or hair can cause permanent color ... Other uses include bleaching flour, hair bleaching, teeth whitening, and textile bleaching. It is also used in the plastic ... Higher concentrations are used for hair bleach and teeth whitening. ...
Potassium persulfatePotassium persulfate
As a strong yet stable bleaching agent it also finds use in various hair bleaches and lighteners. Such brief and non-continuous ... It has been used as an improving agent for flour with the E number E922, although it is no longer approved for this use within ... It is used in organic chemistry as an oxidizing agent, for instance in the Elbs persulfate oxidation of phenols and the Boyland ...
AntichlorAntichlor
Hydrogen peroxide is by itself a strong bleaching agent and should be used only in diluted form, such as a 3% solution in water ... the material that has been bleached. Antichlors include sodium bisulfite, potassium bisulfite, sodium metabisulfite, sodium ... Antichlors are sometimes added to shampoos for treating hair after swimming in chlorinated water. http://www.pburch.net/dyeing/ ... In the textile industry, the antichlor is usually added right before the end of the bleaching process. Antichlors are used ...
BleachBleach
It is used by itself as a bleaching agent, for example to bleach wood pulp, hair and so on, or to prepare other bleaching ... While most bleaches are oxidizing agents, some are reducing agents such as sodium dithionite and sodium borohydride. Bleach ... "bleach", and calcium hypochlorite, the active compound in "bleaching powder". Oxidizing bleaching agents that do not contain ... Industrial bleaching agents can also be sources of concern. For example, the use of elemental chlorine in the bleaching of wood ...
Sodium hypochloriteSodium hypochlorite
... is frequently used as a disinfectant or a bleaching agent. The mixture of sodium peroxide (Na2O2) and ... dermatitis given daily 30-minute baths in bleach solution experienced less severe skin damage and better healing and hair ... When dissolved in water it is commonly known as bleach or liquid bleach. Sodium hypochlorite is practically and chemically ... For example, mixing an acid cleaner with sodium hypochlorite bleach generates toxic chlorine gas. Mixing bleach with amines ( ...
HenkelHenkel
... a liquid cleaning agent, a pomade for cleaning, beef extract, and a hair pomade. Very soon Henkel developed its international ... Sales of Henkel's Bleaching Soda increased so rapidly that within just one year the rented factory on the Schützenstraße in ... which means a bubbles forming bleach (sodium perborate) with a soap component (silicate). The abbreviation of the names of the ... "Henkel Acquires Sexy Hair, Kenra and Alterna - News - Modern Salon". Retrieved 2017-09-22. "Miss Fa". "World of FAntastic ...
Acetone peroxideAcetone peroxide
... is used as a flour bleaching agent to bleach and "mature" flour. Acetone peroxides are unwanted by-products of ... TATP is attractive to terrorists because it is easily prepared from readily available retail ingredients, such as hair bleach ... Ferrari CG, Higashiuchi K, Podliska JA (1963). "Flour Maturing and Bleaching with Acyclic Acetone Peroxides" (PDF). Cereal ... Acetone peroxide takes the form of a white crystalline powder with a distinctive bleach-like odor (when impure) and can explode ...
Ammonium persulfateAmmonium persulfate
It is a strong oxidizing agent that is used in polymer chemistry, as an etchant, and as a cleaning and bleaching agent. The ... Ammonium persulfate is a standard ingredient in hair bleach. Persulfates are used as oxidants in organic chemistry. For example ... As an oxidizing agent and a source of radicals, APS finds many commercial applications. Salts of sulfate are mainly used as ... Furthermore, it has been suggested that exposure to ammonium persulfate can cause asthmatic effects in hair dressers and ...
BleachBleach
It is used by itself as a bleaching agent, for example to bleach wood pulp, hair and so on, or to prepare other bleaching ... "bleach", and calcium hypochlorite, the active compound in "bleaching powder". Oxidizing bleaching agents that do not contain ... "12 Smart Ways to Use Bleach - Reader's Digest". 9 March 2010.. *^ a b c d e Chisholm, Hugh, ed. (1911). "Bleaching". ... Industrial bleaching agents can also be sources of concern. For example, the use of elemental chlorine in the bleaching of wood ...
Hair coloringHair coloring
Coloring dark hair to achieve a desirable shade of blond requires bleaching, followed by a secondary color treatment. Bleached ... Demi-permanent hair color is hair color that contains an alkaline agent other than ammonia (e.g. ethanolamine, sodium carbonate ... Bleached hair will often require pre-pigmentation before a color application. Dyeing bleached hair brown can result in grey or ... Lowlighting, where sections of hair are treated with darker hair colors. *Splashlighting a horizontal band of bleached hair ...
Hydrogen peroxideHydrogen peroxide
Diluted H 2O 2 (between 1.9% and 12%) mixed with ammonium hydroxide is used to bleach human hair. The chemical's bleaching ... It is used in polymerisations, as a flour bleaching agent and as a treatment for acne. Peroxy acids, such as peracetic acid and ... Sodium perborate and sodium percarbonate are important consumer and industrial bleaching agents; they stabilize hydrogen ... Hydrogen peroxide is both an oxidizing agent and reducing agent. The oxidation of hydrogen peroxide by sodium hypochlorite ...
Textile industry in BangladeshTextile industry in Bangladesh
These chemicals include but are not limited to bleaching agents and azo dyes. Azo dyes, such as aniline and benzadine, ... Chronic exposure to high decibels can lead to the development of NIHL among manufacturing workers by damaging sensory hair ... When the potassium permanganate dries, bleach is sprayed on top of the previously treated area to neutralize potassium ... It is an odorless, dark purple, sand-like oxidizing agent. It is used to lighten the color of denim in specific areas. In the ...
Acetone peroxideAcetone peroxide
... is used as a flour bleaching agent to bleach and "mature" flour.[25] ... TATP is attractive to terrorists because it is easily prepared from readily available retail ingredients, such as hair bleach ... Acetone peroxide takes the form of a white crystalline powder with a distinctive bleach-like odor (when impure) and can explode ... "Flour Maturing and Bleaching with Acyclic Acetone Peroxides" (PDF). Cereal Chemistry. 40: 89-100. ...
Skin whiteningSkin whitening
Blocking this transfer is a mechanism of action of some skin whitening agents. Skin whitening agents that block melanocyte ... Procedures Anal bleaching Tooth bleaching Depigmentation Taxifolin Facial Sun tanning Xeesal Diseases Vitiligo Albinism ... red hair color) alleles because of their association with red hair color, freckling and tendency to burn after UV exposure [ ... Hydroquinone does not bleach the skin but lightens it, and can only disrupt the synthesis and production of melanin ...
List of cutaneous conditionsList of cutaneous conditions
... agent-induced Fragrance-induced Gold dermatitis Hair bleach-induced Hair dye-induced Hair lotion-induced Hair spray-induced ... nail-induced Axillary antiperspirant-induced Axillary deodorant-induced Baboon syndrome Black dermatographism Bleaching cream- ... Uncombable hair syndrome (cheveux incoiffable, pili trianguli et canaliculi, spun-glass hair) Wooly hair nevus (woolly hair ... and hair-bearing skin. Within the latter type, the hairs occur in structures called pilosebaceous units, each with hair ...
SulfurSulfur
For example, the high strength of feathers and hair is due in part to the high content of S-S bonds with cysteine and sulfur. ... Sulfur mustard, a potent vesicant, was used in World War I as a disabling agent. Sulfur-sulfur bonds are a structural component ... He mentions its use for fumigation, medicine, and bleaching cloth. A natural form of sulfur known as shiliuhuang (石硫黄) was ... Large quantities of sulfites are used to bleach paper and to preserve dried fruit. Many surfactants and detergents (e.g. sodium ...
Conservation and restoration of fur objectsConservation and restoration of fur objects
There are three types of hair: ground hair, guard hair, and whiskers. "Ground hair is used primarily as insulation and is soft ... Strong acids will not break down the fiber and strong bases "will do no more than soften or possibly bleach" the fur. However, ... Exhibitors must be aware of the agents of deterioration. Heat, light, and humidity should be carefully monitored in whatever ... they should be spot tested before overall use to ensure there is no harmful dyeing or bleaching. If it was determined safe, the ...
List of food additivesList of food additives
Azodicarbonamide - flour bleaching agent. Also used in the production of foamed plastics and the manufacture of gaskets. Banned ... Black limes - Pepper (black, white, and green) - Black PN - color (brown and black) Bleached starch - thickener, vegetable gum ... Also used in making soaps, hair oils and a variety of other products. Tert-butylhydroquinone - antioxidant Tetrahydrocannabinol ... Flour treatment agents Flour treatment agents are added to flour to improve its color or its use in baking. Glazing agents ...
Benzoyl peroxideBenzoyl peroxide
BleachingEdit. Like most peroxides, is a powerful bleaching agent. It has been used for the bleaching of flour, fats, oils, ... A bleached fabric stain caused by contact with benzoyl peroxide.. Contact with fabrics or hair, such as from still-moist acne ... Benzoyl peroxide is also used for bleaching flour, hair, and textiles[10][4] It is also used in the plastics industry.[3] ... As a bleach, it has been used as a medication and a water disinfectant.[3][4] In specialized contexts, the name may be ...
Wood finishingWood finishing
The bleaches used to remove unwanted fungal stains from wood include two-part peroxide bleach and solutions of sodium ... a b c d Anon (1948). Bleaching wood. US Forest Products Laboratory Report FPL-0165, 9pp. ... Use a release agent. 2-Part polyurethane. Transparent. Stronger protection than regular polyurethane varnish. Durable once ... Ox or badger/skunk hair brush recommended. Easy to pad, however French Polish is difficult. Completely reversible using alcohol ...
Sulfuric acidSulfuric acid
Shropshire and the Lagan Valley in County Antrim Ireland where it was used as a bleach for linen. Early bleaching of linen was ... Fe (s) + H 2SO 4 (aq) → H 2 (g) + FeSO 4 (aq) However, concentrated sulfuric acid is a strong oxidizing agent and does not ... hair, tissue paper, etc. Similar to their alkaline versions, such drain openers can dissolve fats and proteins via hydrolysis. ... When combined with nitric acid, sulfuric acid acts both as an acid and a dehydrating agent, forming the nitronium ion NO+ 2, ...
ChlorineChlorine
However, sodium chlorite is a stable salt and is useful for bleaching and stripping textiles, as an oxidising agent, and as a ... Chlorine gas was first used by French chemist Claude Berthollet to bleach textiles in 1785.[19][20] Modern bleaches resulted ... The drawback of using chlorine in swimming pools is that the chlorine reacts with the proteins in human hair and skin. The ... "Bleach Mixing Dangers : Washington State Dept. of Health". www.doh.wa.gov. Archived from the original on 2016-04-14. Retrieved ...
Ebola virus diseaseEbola virus disease
... bleach) or calcium hypochlorite (bleaching powder), and other suitable disinfectants may be used at appropriate concentrations ... Ebolavirus is classified as a biosafety level 4 agent, as well as a Category A bioterrorism agent by the Centers for Disease ... or hair loss. Eye symptoms, such as light sensitivity, excess tearing, and vision loss have been described. Ebola can stay in ... recommendations include using towels soaked in bleach solutions when moving infected people or bodies and applying bleach on ...
Sulfuric acidSulfuric acid
Shropshire and the Lagan Valley in County Antrim Ireland where it was used as a bleach for linen. Early bleaching of linen was ... Industrial cleaning agent[edit]. Main article: Cleaning agent. Sulfuric acid is used in large quantities by the iron and ... An acidic drain cleaner can be used to dissolve grease, hair and even tissue paper inside water pipes. ... When combined with nitric acid, sulfuric acid acts both as an acid and a dehydrating agent, forming the nitronium ion NO+. 2, ...
SulfurSulfur
Banoub, Joseph (2011). Detection of Biological Agents for the Prevention of Bioterrorism. Detection of Biological Agents for ... Large quantities of sulfites are used to bleach paper and to preserve dried fruit. Many surfactants and detergents (e.g. sodium ... He mentions its use for fumigation, medicine, and bleaching cloth.[39]. A natural form of sulfur known as shiliuhuang (石硫黄) was ... Disulfides, S-S bonds, confer mechanical strength and insolubility of the protein keratin, found in outer skin, hair, and ...
EbolaEbola
... bleach) or calcium hypochlorite (bleaching powder), and other suitable disinfectants may be used at appropriate concentrations. ... Ebolavirus is classified as a biosafety level 4 agent, as well as a Category A bioterrorism agent by the Centers for Disease ... or hair loss.[23][141] Inflammation and swelling of the uveal layer of the eye is the most common eye complication in survivors ... Recommendations include using towels soaked in a bleach solution when moving infected people or bodies and also applying bleach ...
AnatomyOrganismsDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPhenomena and ProcessesInformation ScienceHealth Care
HairHair FollicleHair Cells, AuditoryHair ColorHair DiseasesHair Cells, Auditory, InnerHair RemovalHair DyesHair Cells, VestibularHair Cells, Auditory, OuterHair PreparationsAlopeciaSaccule and UtricleCochleaOrgan of CortiScalpStereociliaEar, InnerHair Cells, AmpullaHair Bleaching AgentsKeratins, Hair-SpecificHypotrichosisMechanotransduction, CellularLabyrinth Supporting CellsPlant RootsEpidermisSebaceous GlandsEctodysplasinsLateral Line SystemMinoxidilKeratinsMelaninsKeratinocytesDermisRana catesbeianaMechanoreceptorsKeratins, Type IISpiral GanglionMicroscopy, Electron, ScanningEvoked Potentials, Auditory, Brain StemFibroblast Growth Factor 5RegenerationSkin PigmentationSkinSkin AgingSkin DiseasesSkin NeoplasmsSkin Physiological PhenomenaSkin TestsSodium HypochloriteEncyclopedias as TopicChlorine CompoundsChlorineGreenhouse EffectDioxinsHydrocarbons, Chlorinated
Ingredients -- BleachIngredients -- Bleach
Bleaching hair. Ultraviolet light from the sun is the most common hair-bleaching agent. Lemon juice is sometimes added to speed ... Bleach We bleach our clothes. We bleach our hair. We bleach our teeth. We bleach our skin. We bleach our food. We use bleaches ... also bleaches hair, although (contrary to popular belief) it does not turn the hair green. It bleaches the hair, allowing the ... To speed up the process, benzoyl peroxide is used as a bleaching agent. Sulfur dioxide is a reducing bleaching agent that is ...
scitoys.com
CN1313077C - Anhydrous composition for bleaching keratin fibers - Google PatentsCN1313077C - Anhydrous composition for bleaching keratin fibers - Google Patents
在头发漂白领域，一般要求漂白组合物是足够粘稠的，以准确地使用到头发的某一区域，而并没有流到脸上的危险或流出欲漂白区域的问题。 In the field of hair bleaching, bleach compositions generally ... Decoloration treatment agent for hair FR2824734B1 (en) 2001-05-16. 2003-06-27. Oreal. Pulverulent composition for bleaching ... Hair bleaching composition containing solid polyolefin polymer and method for hair
patents.google.com
15 Reasons Why Natural Skin Bleaching Is So Popular Today15 Reasons Why Natural Skin Bleaching Is So Popular Today
Here are 15 things to know about natural skin bleaching to help you decide whether it is for you. ... Honey - Its antibacterial properties helps fade age spots, bleaches your skin, and acts as a moisturizing agent. • Oranges - ... 7. Not everyone in the planet was born with white skin, blonde hair, and blue eyes. In case you belong to the darker scale, you ... Test First: Always test a natural skin bleaching agent in small parts of your skin before committing to it. • Be Aware: Pay ...
slideshare.net
Occupational Exposures: Asthma | NIOSH | CDCOccupational Exposures: Asthma | NIOSH | CDC
Examples of Associated Agents. Animal Health. *Anesthetic agents. *Animal proteins (from hair/fur, saliva, urine, and dander) ... Bleach (sodium hypochlorite). *Chloramines. *Formaldehyde. *Glutaraldehyde. *Quaternary ammonium compounds (e.g., benzalkonium ...
cdc.gov
Hair Dyes and Hair Treatments | Encyclopedia.comHair Dyes and Hair Treatments | Encyclopedia.com
Source for information on Hair Dyes and Hair Treatments: Chemistry: Foundations and Applications dictionary. ... The history of hair coloring dates from ancient dynasties of Egypt and China where mineral and plant dyes were widely available ... Through the ages, women in particular have dyed their hair to hide grayness and to improve their appearance. ... Hair Dyes and Hair Treatments Hair has no vital function in the human body but provides an outward sign of health and social ...
encyclopedia.com
Bleach - WikipediaBleach - Wikipedia
2). It is used, for example, to bleach wood pulp and hair or to prepare other bleaching agents like the perborates, ... These bleaches are called non-chlorine bleach, oxygen bleach or color-safe bleach.[2] ... "Oxygen Bleach Vs. Chlorine Bleach". Sciencing. Retrieved 16 April 2018.. *^ Phillips, H. (2008). "The Bleaching of Wool with ... Industrial bleaching agents can also be sources of concern. For example, the use of elemental chlorine in the bleaching of wood ...
en.wikipedia.org
Benzoyl peroxide - WikipediaBenzoyl peroxide - Wikipedia
Other common uses for benzoyl peroxide include Bleaching hair Tooth whitening systems The preparation of bleached flour As a ... Benzoyl peroxide, like most peroxides, is a powerful bleaching agent. Contact with fabrics or hair can cause permanent color ... Other uses include bleaching flour, hair bleaching, teeth whitening, and textile bleaching. It is also used in the plastic ... Higher concentrations are used for hair bleach and teeth whitening. ...
en.wikipedia.org
Bleaching Chemicals Market: APAC Industry Analysis and Opportunity Assessment 2014-2020: FMI | Apr 17, 2015 - ReleaseWireBleaching Chemicals Market: APAC Industry Analysis and Opportunity Assessment 2014-2020: FMI | Apr 17, 2015 - ReleaseWire
Bleaching chemicals are oxidizing agents used for numerous applications such as stain removal, disinfecting textile material ... Bleaching as a process has been used for a long time, and the various chemicals used for bleaching currently have resulted from ... Bleaching chemicals are either chlorine or peroxide based, and some of the commonly used bleaching chemicals are chlorine, ... Though bleaching chemical is an industrial products, they have gained importance in various end-user industries due to ...
sbwire.com
Difference Between Facial and Bleach | Difference Between | Facial vs BleachDifference Between Facial and Bleach | Difference Between | Facial vs Bleach
What is Bleach? Bleach uses a whitening agent to lighten skin, hair, or teeth. The chemicals often used are hydrogen peroxide, ... Difference Between Facial and Bleach. * Main Objective. Bleaching is meant to whiten or lighten while facial aims to cleanse ... On the contrary, bleaching only has two general steps which are cleansing and bleach application. ... On the other hand, bleaching treatments include the face, hair, teeth, and other body parts that can be lightened. Moreover, ...
differencebetween.net
Growth, Senescence, Canities, Bleaching and Anti-aging in HairGrowth, Senescence, Canities, Bleaching and Anti-aging in Hair
Molecular biology promises new strategies in combating the aging process of hair cells, with the paradigm shift toward ... The continued use of hair bleaches and dyes to combat the onset of gray hair creates a greater demand for hair products that ... understanding the living component of the hair follicle. ... bleaching agents, perming agents and the like to help enhance ... Bleaching. Bleaches permanently and irreversibly oxidize the melanin pigment deposited in the cortex of the hair fiber, ...
cosmeticsandtoiletries.com
Bleach - WikipediaBleach - Wikipedia
It is used by itself as a bleaching agent, for example to bleach wood pulp, hair and so on, or to prepare other bleaching ... "bleach", and calcium hypochlorite, the active compound in "bleaching powder". Oxidizing bleaching agents that do not contain ... "12 Smart Ways to Use Bleach - Readers Digest". 9 March 2010.. *^ a b c d e Chisholm, Hugh, ed. (1911). "Bleaching". ... Industrial bleaching agents can also be sources of concern. For example, the use of elemental chlorine in the bleaching of wood ...
en.wikipedia.org
Teeth Whitening PlaceTeeth Whitening Place
Hair and teeth - all the same?. Despite the variety of remedies, it is always the same substance that bleaches your teeth: ... A bewildering array of bleaching agents and extra-white toothpaste are filling the drugstore shelves, dentists offer "in-office ... Home Foods Dentist Bleaching Uncritical bleaching - facts nobody told you. Teeth: A beautiful smile: what you can do for it - ... If the bleaching gel is particularly high-dose, only a dentist may use it in his office (in-office bleaching). Then two to four ...
s3.amazonaws.com
Hydrogen Peroxide Health & Safety Tips | MSDSonlineHydrogen Peroxide Health & Safety Tips | MSDSonline
Mild laundry detergent bleach. *Disinfectant. *Cosmetic hair bleach. *Flour bleaching agent. *Acne treatment ... and oxidizing agents. This chemical must be disposed of in accordance with federal, state, and local environmental control ...
msdsonline.com
Frequently Asked QuestionsFrequently Asked Questions
Does Eye Envy® fade/bleach colored animals?. No. The product does not contain any peroxides or bleaching agents. Your pets ... Bleach/Peroxide can make the hair shaft very porous, causing the stain to set into the hair. Eye Envy will only lighten to a ... Products that contain bleach/peroxide can make the hair shaft very porous, causing the stain to set into the hair. This is also ... mimic the properties of bleach or peroxide. The ingredients will initially clean the hair shaft, but causes the hair to become ...
eyeenvy.com
Bleaching your skin? Follow these dos and donts | Beauty and Personal GroomingBleaching your skin? Follow these dos and donts | Beauty and Personal Grooming
Also avoid bleaching when you are nursing your baby.. * Once the hair is all lightened, rinse off the bleach using cool water ... Hydrogen peroxide has been universally acknowledged as a cleansing agent.. But hydrogen peroxide can also lead to temporary ... A few tips about bleaching, the benefits of bleaching, precautions to follow while bleaching etc are mentioned in these posts: ... Store bleaching products in a cool, dry place.. * Before you apply the bleach, wash the area to be bleached with mild soap and ...
beautyandgroomingtips.com
Composition for bleaching and simultaneously dyeing keratin fibers, comprising quinoline or a quinoline derivative -...Composition for bleaching and simultaneously dyeing keratin fibers, comprising quinoline or a quinoline derivative -...
The present invention relates to a composition for bleaching and simultaneously dyeing keratin fibers, comprising at least one ... This method allows the hair fiber to be dyed and simultaneously bleached. Since the level of lightening is substantial, it is ... at least one alkaline agent. The composition in accordance with the present disclosure is useful, for example, for bleaching ... The proportions of the bleaching powder B/oxidizing agent E/booster A mixture were, respectively, 1/2/0.5. ...
freepatentsonline.com
Powerful protection and repair for hairPowerful protection and repair for hair
Bleaching raises the outer cuticle of the hair which allows the bleaching agent to penetrate and remove color by oxidation. ... Hair tresses were bleached, rinsed and then dyed with a commercial red hair dye. After measuring the baseline color, the hair ... Tests suggest, KeraGuard to protect hair from heat damage, prevents fading of colored hair and repairs bleached hair. ... Repair of bleached hair. Bleaching is a drastic procedure leading to structural and chemical damage and also to the generation ...
cosmeticsdesign-europe.com
How to Remove Nicotine Stains From My MustacheHow to Remove Nicotine Stains From My Mustache
Use scissors to trim as much of the tar-stained hair as possible off the moustache. ... Sitting in the sun may accelerate the bleaching process.. If stains remain in the moustache hair, use bleach for facial hair. ... Hydrogen peroxide is a mild bleaching agent. Do not confuse this with the type of peroxide used in head hair-lightening ... Do not use household bleach or regular hair bleach because it may damage your skin. ...
ehow.co.uk
Bleaching Tips for Dark HairBleaching Tips for Dark Hair
... while others notice bleaching agents damage and destroy their locks. Bleaching naturally dark hair requires some special ... Leaving your bleach on too long may cause your hair to turn an unattractive shade of orange. Correcting this condition requires ... You are here: Home / Fashion/Beauty / Bleaching Tips for Dark Hair. Bleaching Tips for Dark Hair. June 24, 2010. by ModernMom ... Enhance Hairs Condition. Condition your hair prior to bleaching it lighter. Use a deep conditioner to get your hair in the ...
modernmom.com
Hydrogen BleachHydrogen Bleach
... on WN Network delivers the latest Videos and Editable pages for News & Events, including Entertainment, Music, ... hydrogen peroxide bleaches the hair and helps p-phenylenediamine, one of the primary coloring agents, to become trapped in the ... Usage as a Bleaching Agent ... Growing Paper Production Drives Healthy Demand for Hydrogen Peroxide as a Versatile Bleaching ... Bleach (season 8). The eighth season of the Bleach anime series is named the Arrancar: The Fierce Fight arc (破面・激闘篇, Arankaru ...
wn.com
Can You Color Bleached Hair? | Reference.comCan You Color Bleached Hair? | Reference.com
Bleached hair removes the pigment from the hair, leaving the hair ready to fully absorb a new... ... Coloring bleached hair often produces the best results and is a common practice according to Clairol. ... A: In order to remove a yellow tint from bleached hair, the hair should be treated with a bleaching agent and then properly ... How Do I Get Rid of My Bleached Hair?. A: To get rid of bleached hair and combat the damage that bleach does to human hair, it ...
reference.com
Patent US6732744 - Method for the ultrasonic treatment of hair and other keratinous fibers - Google PatentsPatent US6732744 - Method for the ultrasonic treatment of hair and other keratinous fibers - Google Patents
The treatment device efficaciously dispenses the chelating agent and ultrasonically treats the fiber. ... and a chelating agent preferably disposed within the treatment device. ... The invention is the use of a chelating agent with an ultrasonic device for the treatment of hair and other fibers. The ... A bleach cycle included the application of a standard bleaching solution to a hair switch, followed by application of ...
google.com
Can I whiten my sensitive teeth?Can I whiten my sensitive teeth?
... a bleaching agent, generally carbamide peroxide or hydrogen peroxide (yep, the same thing used to brighten hair), is used to ... Buffering the bleach. But like your smartphone, teeth technology is getting smarter by the day. The bleaching gels used ... Even without a bleaching procedure, your dentist or dental hygienist can clean your teeth to remove external stains. ... He can examine your mouth and determine which whitening options are right for you, whether it is in-office or at-home bleaching ...
colgate.com
Patent US5221286 - Cold mix emulsions used as a developer composition for oxidative hair dyes ... - Google PatentsPatent US5221286 - Cold mix emulsions used as a developer composition for oxidative hair dyes ... - Google Patents
... of oxidizing preparations for the bleaching of hair and for the dying of hair with oxidation hair dyes and hair bleaches. ... The continuous phase contains water, an emulsifier, and at least one oxidizing agent. The discontinuous phase contains salts of ... of oxidizing preparations for the bleaching of hair and for the dying of hair with oxidation hair dyes and hair bleaches. The ... of oxidizing preparations for the bleaching of hair and for the dying of hair with oxidation hair dyes and hair bleaches. ...
google.com
Top 5 Ways to Recover Damaged Hair Fast - MippinTop 5 Ways to Recover Damaged Hair Fast - Mippin
Hydrogen peroxide or ammonia is the most commonly used bleaching agents to colour your hair. They work by breaking into the ... Resist hair Colours and Bleaches.. To all the ladies out there; you might have craved for that stunning Mahogany coloured hair ... Even some of the hair colours have these bleaching agents as a component. ... Reduce the usage of hair colour and bleaches; they literally damage your hair that might sometimes go beyond repair. ...
mippin.com
AnatomyOrganismsDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPhenomena and ProcessesInformation ScienceHealth Care
HairHair FollicleHair Cells, AuditoryHair ColorHair DiseasesHair Cells, Auditory, InnerHair RemovalHair DyesHair Cells, VestibularHair Cells, Auditory, OuterHair PreparationsAlopeciaSaccule and UtricleCochleaOrgan of CortiScalpStereociliaEar, InnerHair Cells, AmpullaHair Bleaching AgentsKeratins, Hair-SpecificHypotrichosisMechanotransduction, CellularLabyrinth Supporting CellsPlant RootsEpidermisSebaceous GlandsEctodysplasinsLateral Line SystemMinoxidilKeratinsMelaninsKeratinocytesDermisRana catesbeianaMechanoreceptorsKeratins, Type IISpiral GanglionMicroscopy, Electron, ScanningEvoked Potentials, Auditory, Brain StemFibroblast Growth Factor 5RegenerationSkin PigmentationSkinSkin AgingSkin DiseasesSkin NeoplasmsSkin Physiological PhenomenaSkin TestsSodium HypochloriteEncyclopedias as TopicChlorine CompoundsChlorineGreenhouse EffectDioxinsHydrocarbons, Chlorinated
HydrogenChlorineDyesKeratin fibersFibersOuter cuticleAmmoniaLightenersToothpastePaper and pulpFlourPorousOxidationLaundryPrecautionsCalcium hypochloriteStainsIngredientMildImpurities17th centuryAntisepticCuticlePigmentColoringFacial hairWhitenPenetrateCosmeticShampoosSubstancesIrritationCreamsCoconut oilDamageCompositionScalp regionSulfurTreatmentsDisinfectComplexionFolliclesLighten hairOxidizingPowderSunlightNowadaysReducingMixtureUltravioletBlonde HairRemediesApplicatorOrganicGentlyProcessBrittleClothSkinRinseDullDentistColourToothpastesOxygenLighterHair'sMelanin
Hydrogen25
Chlorine15
Dyes6
Keratin fibers1
Fibers2
Outer cuticle2
Ammonia2
Lighteners3
Toothpaste4
Paper and pulp1
Flour1
  • It has been used as an improving agent for flour with the E number E922, although it is no longer approved for this use within the EU. (wikipedia.org)
Porous2
Oxidation1
Laundry2
Precautions1
Calcium hypochlorite3
Stains3
Ingredient3
Mild1
Impurities1
17th century1
  • By the 17th century, there was a significant cloth bleaching industry in Western Europe, using alternating alkaline baths (generally lye ) and acid baths (such as lactic acid from sour milk, and later diluted sulfuric acid ). (wikipedia.org)
Antiseptic1
Cuticle2
  • The hair is ensheathed in a multilayered cuticle of overlapping cells that become progressively imbricated (having edges overlapping in a regular arrangement) with continued growth. (encyclopedia.com)
  • However, repeated bleaching can permanently raise the cuticle scales and allow rapid and continuous loss of moisture. (philipkingsley.com)
Pigment4
Coloring5
Facial hair2
  • Many opt to undergo bleaching treatments, for a brighter complexion, to lighten facial hair, and to eliminate or lessen dark pigmentations such as freckles, age spots, and scars. (differencebetween.net)
  • Excessive Tearing: When the facial hair is wet from excessive tearing ( a condition known as epiphora), it becomes a breeding ground for bacteria and yeast infections - AKA: Red Yeast (or Pityrosporum). (eyeenvy.com)
Whiten1
Penetrate1
Cosmetic2
  • This is the deterioration of the hair shaft from root to tip and is the result of a range of cosmetic and environmental factors. (cosmeticsdesign-europe.com)
  • Cosmetic practices such as combing, brushing, straightening, perming, dyeing, etc., as well as environmental factors such as exposure to UV light and polluted air can induce structural damage to the F-layer, the outermost protective layer of the hair, and the hair fiber. (cosmeticsdesign-europe.com)
Shampoos1
Substances2
  • While hair color is closely related to the density of melanin granules, impairment in a person's health or substances in the diet that influence the availability of trace minerals are potential causes of changes in hair color or condition. (encyclopedia.com)
  • Some famous African musicians both men and women are still bleaching their skins, others have died of skin cancers because of using creams with bleaching substances, and then you wonder how thick one can be to go ahead and use the same creams, just so that they can have a fairer look! (co.rw)
Irritation2
Creams4
Coconut oil2
Damage9
Composition1
Scalp region2
  • about 100,000 hairs are found on the scalp region of most adults. (encyclopedia.com)
  • This helps in increased blood circulation on the scalp region and thus replenishes the hair roots with proper nutrition that it lacks. (mippin.com)
Sulfur3
Treatments3
Disinfect1
Complexion1
Follicles2
Lighten hair2
Oxidizing6
Powder1
  • Coffee powder, another scrubbing agent would simply and softly remove all the ingrown hair within just a few applications and would get your smooth a cleansed skin back! (hubpages.com)
Sunlight1
Nowadays2
Reducing2
Mixture5
Ultraviolet2
Blonde Hair1
  • Designed with violet hues and Optical Brightener, gently cleanses whilst adding shine to dull, discoloured, grey hair and brassy blonde hair. (philipkingsley.com)
Remedies2
Applicator1
Organic1
  • Bleaches work by reacting with many colored organic compounds, such as natural pigments, and turning them into colorless ones. (wikipedia.org)
Gently3
Process6
Brittle1
  • Have you noticed lately that your hair looks dull and brittle, rather than that smooth and shiny appearance? (mippin.com)
Cloth4
  • This small amount of extra lye in the solution, along with the caustic nature of the hypochlorite itself, is what eats away the cloth if undiluted bleach is spilled on the clothing. (scitoys.com)
  • The earliest form of bleaching involved spreading fabrics and cloth out in a bleachfield to be whitened by the action of the sun and water . (wikipedia.org)
  • Moreover, bleaching may also be applied to various materials such as paper and cloth. (differencebetween.net)
  • Then moisten another cloth with cool water and a dab of hair shampoo. (queenofclean.com)
Skin21
Rinse1
  • Avoid exhaling cigarette smoke through the nostrils and carefully shampoo and rinse the moustache hair after every cigarette. (ehow.co.uk)
Dull1
Dentist3
Colour1
Toothpastes2
Oxygen3
Lighter2
Hair's1
Melanin3
  • Human hair is composed largely of keratin and consists of a narrow central medulla surrounded by a thick envelope (cortex) of elongate cells, which contain numerous melanin granules that determine the natural color. (encyclopedia.com)
  • Melanin granules are secreted by melanocytes in the hair papilla and distributed to keratin in the hair cortex and inner layers of the hair sheath during normal development. (encyclopedia.com)
  • UV irradiation of the hair generates free radicals that are scavenged by the hair pigments, the melanin polymer. (cosmeticsdesign-europe.com)