Humectant
BENZYL PCA
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Benzyl ester of pyrrolidone carboxylic acid (PCA). PCA is a natural moisturising factor; the benzyl ester gives it lipid-solubility for oil-phase use. Generally well tolerated; benzyl chemistry adds a small sensitisation caveat.
Function
Skin benefits
- Humectant — draws moisture into skin
- Related to PCA (natural NMF component)
- Compatible with most formulations
Known concerns
- Benzyl moiety can be a mild sensitiser
- Limited cosmetic-specific safety data
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related humectants
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.