EpidermisSkinKeratinocytesSkin Physiological ProcessesUltraviolet RaysSkin NeoplasmsMelanocytesFibroblastsSkin AgingCells, CulturedDose-Response Relationship, RadiationSkin Physiological PhenomenaSkin DiseasesMice, TransgenicSkin, ArtificialSkin PigmentationDermisSkin AbsorptionPlant EpidermisMice, HairlessSkin TestsKeratinsSunlightWound HealingAdministration, TopicalHair FollicleMelaninsDermatitisErythemaCysteamineSebaceous GlandsLangerhans CellsCell DifferentiationPyrimidine DimersKeratin-10RNA, MessengerSkin UlcerSkin AbnormalitiesKeratosisCell LineDNA DamageBlisterMelanomaImmunohistochemistryAdministration, CutaneousSkin TransplantationSkin Diseases, BacterialPapillomaCarcinoma, Basal CellOxidative StressHairPhotosensitizing AgentsCell DivisionCell Line, TransformedCell ProliferationGene Expression RegulationGene ExpressionSweat GlandsSunscreening AgentsApoptosisCell SurvivalModels, BiologicalMice, Inbred C57BLStaphylococcal Skin InfectionsBase SequenceSignal TransductionDermatologic Surgical ProceduresSkin Diseases, Viral9,10-Dimethyl-1,2-benzanthraceneInjections, IntradermalMutationMicroscopy, FluorescenceKeratin-14Keratolytic AgentsDose-Response Relationship, DrugDNAHydrogen PeroxideIntermediate Filament ProteinsDesmosomesDermatitis, ContactCollagenDNA RepairBiopsyMolecular Sequence DataTime FactorsOrgan Culture TechniquesReactive Oxygen SpeciesCulture Media, ConditionedSkin CreamRats, Hairless