pca_ester
CETYL PCA
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Cetyl PCA is the cetyl ester of pyrrolidone carboxylic acid, providing a lipophilic humectant and emollient that supports skin softness and natural moisturising factor mimicry.
Skin benefits
- lipophilic humectant for emulsions
- smooth emollient skin feel
- PCA backbone aligns with skin NMF
Known concerns
- may be comedogenic in heavy formulas
- limited standalone irritation data
- ester stability dependent on pH
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related pca_esters
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.