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Skin Conditioning

PROLINE

CAS 147-85-3 (L-) / 609-36-9 (dl-alpha)
88

Safety score · 0–100

Good

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

An amino acid central to collagen structure. Used in skincare as a gentle humectant and conditioner. Food-grade and one of the safest cosmetic ingredients.

Function

HAIR CONDITIONINGSKIN CONDITIONING

Skin benefits

  • Amino acid building block of skin proteins
  • Mild humectant
  • Skin conditioning

Known concerns

  • No significant concerns at cosmetic concentrations

References

EU

EU CosIng database

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

PC

PubChem

U.S. NIH compound data, GHS hazard codes and toxicity literature.

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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.