Our skin has amazing capacities and performs some very interesting functions. It forms a protective layer for the rest of the body, shielding it from pollutants and radiation. It regulates body temperature, carries sensations to the brain, rids the body of toxins through sweating, and allows us to move freely and comfortably.
Transepidermal water loss, or TEWL, occurs when water passes through the skin's layers into the air, where it evaporates. Although this is a natural and inevitable process, sometimes it can have negative effects on the skin. As you might imagine, it can cause dehydration and speed up the skin's aging process. There are things you can do to limit the negative effects of TEWL, but a basic understanding of the skin and its functions will help you understand how it can be treated.