Mouth MucosaSkinMouthIntestinal MucosaSkin AgingGastric MucosaSkin NeoplasmsSkin DiseasesSkin Physiological PhenomenaEpidermisNasal MucosaSkin AbsorptionSkin PigmentationKeratinocytesFibroblastsSkin, ArtificialUltraviolet RaysDermisMouth FloorSkin TestsMouth DiseasesErythemaMucous MembraneMouth NeoplasmsCells, CulturedSkin TransplantationAdministration, TopicalSunlightOlfactory MucosaMouthwashesDermatitisMouth, EdentulousSkin Physiological ProcessesMelanocytesColonAdministration, CutaneousLaryngeal MucosaSebaceous GlandsBiopsySkin UlcerBlisterXerostomiaSkin Diseases, BacterialMelaninsImmunohistochemistrySunscreening AgentsWound HealingMice, HairlessLangerhans CellsEnterovirus A, HumanRNA, MessengerTime FactorsCarcinoma, Basal CellMouth ProtectorsKeratosisSweat GlandsInjections, IntradermalPsoriasisOrgan Culture TechniquesHair FollicleCollagenStaphylococcal Skin InfectionsMatrix Metalloproteinase 1DuodenumSkin Diseases, ViralMicrobial CollagenaseSkin AbnormalitiesDose-Response Relationship, RadiationCarcinoma, Squamous CellDermatologic Surgical ProceduresSebumKeratinsIrritantsKeratolytic AgentsMolecular Sequence DataClobetasolEpitheliumIntestine, SmallGastritisEsophagusModels, BiologicalPermeabilityPapillomaTongueForeheadGene ExpressionReverse Transcriptase Polymerase Chain ReactionPyrimidine DimersStomachCheekCell LineMalasseziaDose-Response Relationship, DrugSalivaIleumMelanomaStomach UlcerViolaAcne VulgarisLaser-Doppler Flowmetry