Human skin color within a "fair/medium/olive" context. Oculocutaneous albinism (OCA) is a lack of pigment in the eyes, skin and sometimes hair that occurs in a very small fraction of the population. The four known types of "OCA" are caused by mutations in the "TYR", "OCA2", "TYRP1", and "SLC45A2" genes. In hominids, the parts of the body not covered with hair, like the face and the back of the hands, start out pale in infants and turn darker as the skin is exposed to more sun. All human babies are born pale, regardless of what their adult color will be. In humans, melanin
Baumann Skin Types form of post-inflammatory hyperpigmentation (PIH). Most pigment changes can be prevented and corrected through the use of proper skincare ingredients. Age, ethnicity and lifestyle habits influence whether skin is wrinkle-prone or tight. There is still a genetic component to this parameter, but external factors that contribute to an aged appearance are controllable. Sun exposure is the primary cause of skin aging, destroying skin proteins like collagen and elastin. Each parameter is associated with particular skin conditions and challenges, and the specific combinations also experience particular tendencies. For example, DRPW types often have a history of sun exposure manifested by wrinkles