Skin PigmentationPigmentation DisordersPigmentationUltraviolet RaysMelaninsMelanosomesMelanocytesHyperpigmentationSkinSunlightMonophenol MonooxygenaseReceptor, Melanocortin, Type 1Eye ColorErythemaSkin Physiological PhenomenaCyclic AMP-Dependent Protein Kinase RIalpha SubunitHypopigmentationChromatophoresAlbinismalpha-MSHVitamin D DeficiencyMelanophoresHair ColorClofazimineMultiple Endocrine NeoplasiaSkin NeoplasmsSkin AgingDyskeratosis CongenitaVitiligoKeratinocytesVitamin DAdrenal Cortex DiseasesMyxomaEpidermisUltraviolet TherapySkin DiseasesAntiportersSpectrophotometry, UltravioletPigments, BiologicalAgouti Signaling ProteinMelanosisSyndromeAfrican Continental Ancestry GroupRadiation EffectsPUVA TherapySunscreening AgentsMutationEuropean Continental Ancestry GroupMice, HairlessSunburnSelection, GeneticAnthocyaninsAlbinism, OculocutaneousPolymorphism, Single Nucleotide