Skin PigmentationSkinPigmentation DisordersPigmentationSkin AbsorptionMelaninsEpidermisMelanosomesMelanocytesHyperpigmentationSunlightMonophenol MonooxygenaseReceptor, Melanocortin, Type 1Eye ColorUltraviolet RaysSkin Physiological PhenomenaCyclic AMP-Dependent Protein Kinase RIalpha SubunitHypopigmentationErythemaChromatophoresAlbinismalpha-MSHMelanophoresVitamin D DeficiencyClofazimineMultiple Endocrine NeoplasiaHair ColorDyskeratosis CongenitaVitiligoAdrenal Cortex DiseasesMyxomaVitamin DSkin AgingSkin NeoplasmsAntiportersKeratinocytesSkin DiseasesPigments, BiologicalAgouti Signaling ProteinSyndromeMelanosisAfrican Continental Ancestry GroupEuropean Continental Ancestry Group