The outermost layer of the skin, consisting of keratinized cells.
- This property results from product adherence to the stratum corneum layer of the skin, inhibiting microbial recolonization.
- Generally, all maintenance and repair products should focus on the restorative and nutritive needs of the stratum corneum and epidermal cells.
- The stratum corneum and a natural skin oil called the ‘barrier lipid’ provide protection for the living skin cells with their sensitive nerve endings.
Latin, literally 'horny layer'.
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