Pc
PCA
PCAHydrator
Part of the skin’s own moisture system: it draws water into the skin.
What it does
PCA (pyrrolidone carboxylic acid) is one of the natural moisturizing factors found in the outer skin layer, where it holds water. Its sodium salt, sodium PCA, is the more common form in products. Drop has read no study of it on skin; it is listed for the job it does in the formula.
Also known as
pyrrolidone carboxylic acid
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