Beauty and Skincare, what this Aging means to your Skin
With intrinsic biological aging, the skin’s outer layer is thinned (over time by about 20 percent). The surface of the skin remains smooth. The border between the epidermis and the dermis becomes flattened, making the skin less resistant to friction (you get more blisters in snug shoes!). In contrast, extrinsic photoaging causes a thickening of the outer skin layer, with up to 50 percent more cells being accumulated onto the skin’s surface, making it feel rough and dry. Think of the grainy, thickened skin on the backs of the hands of a gardener, for example. With photoaging, accumulation of pigment in the basal cells is more markedly irregular than in intrinsic aging, causing the so-called “liver spots” or “age spots” (medically called solar lentigos), the unattractive dark spots especially prevalent on the hands, arms, face and chest. (more…)
