PCA ●
TL;DR. This ingredient is primarily a humectant, helping bind water in the skin and supporting the skin’s natural moisture factor. It is used in leave-on and rinse-off formulas to improve hydration without a heavy feel.
What does PCA do in a cosmetic formula?
This ingredient is primarily a humectant, helping bind water in the skin and supporting the skin’s natural moisture factor. It is used in leave-on and rinse-off formulas to improve hydration without a heavy feel.
Is PCA clean?
It is generally well-tolerated, low in sensitization concerns, and not a common clean-standard restricted-list issue. Formulas still need normal pH control, since very acidic systems can feel more active on sensitive or compromised skin.
Is PCA sustainable?
This material is commonly made from amino-acid based or fermentation-linked feedstocks and is readily biodegradable. It has low persistence concerns and does not carry major palm, mineral, or petrochemical sourcing flags when made through natural-origin routes.
Is PCA COSMOS-approved?
It is generally permitted under COSMOS-natural and COSMOS-organic frameworks when produced from approved natural-origin feedstocks and processes. Its profile fits Green Chemistry well because it can be made from renewable inputs, functions at low levels, and biodegrades readily.
How does PCA work chemically?
The molecule is a small cyclic lactam with a carboxylic acid group, giving it strong water-binding behavior and good compatibility with aqueous phases. It is typically used around 0.1% to 2% in hydration-focused formulas, with performance and skin feel depending on final formula pH and the presence of complementary humectants.
Last updated 2026-05-13