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Humectant

SODIUM LACTATE

CAS 72-17-3 / 867-56-1 Updated
88

Safety score · 0–100

Good

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

About

Sodium salt of lactic acid — a key component of skin's natural moisturising factor. Excellent humectant; gentle and safe at typical cosmetic levels.

Function

BUFFERINGHUMECTANTKERATOLYTIC

Skin benefits

  • Natural moisturising factor (NMF) component
  • Humectant — binds water to skin
  • Mild keratolytic at higher %
  • Buffering pH agent

Known concerns

  • Can increase photosensitivity at very high %
  • Mild stinging on compromised skin

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 — always read the physical product label and consult a healthcare professional for personal concerns.