SkinKeratinocytesSkin AgingSkin NeoplasmsUltraviolet RaysSkin Physiological PhenomenaMelanocytesEpidermisFibroblastsSkin, ArtificialSkin DiseasesSkin PigmentationCells, CulturedDermisCysteamineMice, HairlessSunlightSkin TestsDose-Response Relationship, RadiationSkin AbsorptionWound HealingPhotosensitizing AgentsOxidative StressDNA DamageMelaninsAdministration, TopicalPyrimidine DimersCell LineCell Line, TransformedMelanomaKeratinsCell SurvivalApoptosisHerpesvirus 1, HumanHydrogen PeroxideCell DifferentiationRNA, MessengerSkin Diseases, BacterialCell ProliferationSkin UlcerDNA RepairCulture Media, ConditionedGene Expression RegulationReactive Oxygen SpeciesMice, Inbred C57BLMicroscopy, FluorescenceCell DivisionDose-Response Relationship, DrugRabbitsImmunohistochemistryBase SequenceGene ExpressionDNASkin AbnormalitiesSignal TransductionModels, BiologicalDNA PrimersMutationStaphylococcal Skin InfectionsDermatitisDermatologic Surgical ProceduresSkin Diseases, ViralSkin CreamSkin Physiological ProcessesCarcinoma, Basal CellErythemaAdministration, CutaneousSkin Diseases, ParasiticPapillomaKeratosisSunscreening AgentsHair FollicleRats, Hairless9,10-Dimethyl-1,2-benzanthraceneHairBlisterSunburnSebaceous GlandsSkin ManifestationsLangerhans CellsDermatitis, ContactWater Loss, InsensibleEmollientsDermatitis, Allergic ContactDermatologic AgentsDermatologyInjections, IntradermalBiopsyTuberculin TestDermatitis, OccupationalDermatitis, IrritantCosmeticsDrug EruptionsSurgical FlapsIntradermal Tests