pca_ester
ETHYL PCA
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Ethyl PCA is the ethyl ester of pyrrolidone carboxylic acid, used as a humectant that mimics components of the skin natural moisturising factor for hydration.
Skin benefits
- humectant similar to native PCA
- compatible with skin natural moisturising factor
- stable at typical cosmetic pH
Known concerns
- ester hydrolysis releases ethanol traces
- limited standalone clinical studies
- may not perform as well as sodium PCA in occlusive systems
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.