The aging signs on the surface of skin, including dry and rough skin, thin and transparent skin, loss of elasticity, wrinkles, dull skin tone, uneven pigmentation, are all very unattractive. Why do they happen when we age? These can be explained by two distinct types of aging.

Intrinsic (internal) aging : Aging caused by the genes we inherit

Extrinsic (external) aging : Aging caused by environmental factors, such as exposure to the sun.