What it does: moisturizer, humectant, skin-identical ingredient
Also called: sodium pyrrolidone carboxylic acid
PCA stands for Pyrrolidone Carboxylic Acid and can be found naturally in our skin. The sodium salt form of PCA is an important skin-identical ingredient and great natural moisturizer that helps the skin to hold onto water and stay nicely hydrated.
Benefits for your hair
It helps to retain the moisture in your strands, thereby keeping the hair hydrated and nourished.
Sodium PCA is a skin-identical ingredient which helps to moisturize hair and prevent dryness.