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Humectant

CALCIUM PCA

CAS 31377-05-6 Updated
85

Safety score · 0–100

Good

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

The calcium salt of pyrrolidone carboxylic acid, a part of the skin's natural moisturizing factor. A gentle, well-tolerated humectant with a long cosmetic safety record.

Skin benefits

  • Strong humectant from skin's natural moisturizing factor
  • Soothing and hydrating
  • Excellent tolerance

Known concerns

  • No significant concerns at cosmetic concentrations

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

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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.