infographic of freckles and melasma skin on woman face .

freckles melasma skin pigmentation hyperpigmentation face melanin melanocyte small flat spots patches comparison cross woman sun exposed ephelides solar lentigines actinic discoloration complexion disorder genetic dark brown melanogenesis pigment hormone layer cell epidermis dermis sunburn exposure vector infographic design diagram inflammation unhealthy dermatology beauty treatment care damage lesion change ultraviolet light childhood summer aesthetic blue gray concept cartoon nose head organ pink brand clothing adult hairstyle hair toy hand person font eye finger