healthy skin prevent sun damage skin on woman face on background.

sun protection prevention damage damaged skin photoaging dark spots face tan melasma aging wrinkle burn inflammation red photodamage solar premature pigmentation wrinkling exposure healthy vector woman melanin concept cause uva uvb ultraviolet rays pigment hyperpigmentation freckle blemish elastin collagen epidermis dermis melanocyte white background infographic cancer dermatology aesthetic prevent protect background exposure reflect