INCI Name:
PCA stands for Pyrrolidone Carboxylic Acid and though it might not sound like it, it is a thing that can be found naturally in our skin. In fact, after amino acids, it is the second biggest NMF component of the skin with 12% being PCA of the NMF composition of normal skin. So similar to other NMFs, it's a skin goodie that helps the skin to hold onto water and stay nicely hydrated.
As an AHA, it gently exfoliates the skin, breaking down the bonds between dead skin cells.
Wool wax is a skin softener, emollient, humectant, and emulsifier.
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