Hydrating vs. Moisturizing – What’s the difference?

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Before we go into these terms, it is imperative to know a little bit about the anatomy of the skin and a commonly used term: trans-epidermal water loss (TEWL). The skin is comprised of three primary layers: the epidermis, the outermost layer; the dermis or middle layer; and the hypodermis, the under-most layer. When water passes from the dermis through …