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Trans epidermal Water Loss – What is it and How to Stop It

Latest News – October 17, 2021

Trans epidermal Water Loss – What is it and How to Stop It

If you are struggling with dehydrated or dry skin, one of the causes may be trans epidermal water loss (TEWL). You're losing water and moisture from your skin. TEWL can lead to a variety of dry skin conditions — including severe dehydration — but there are ways that you can keep your skin hydrated or prevent dryness from occurring in the first place. What Is Trans epidermal Water Loss? To understand TEWL, let's revisit the layers of our skin. Our skin is made up of three primary layers, the outermost being the epidermis (aka what you look at in the mirror). The dermis is the middle layer, and the hypodermis is the innermost layer. TEWL occurs when water passes from the dermis through the epidermis and evaporates through the skin barrier.

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