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Humectant

POTASSIUM LACTATE

CAS 996-31-6 / 85895-78-9 Updated
84

Safety score · 0–100

Good

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

About

Potassium salt of lactic acid — a humectant and pH buffer that is part of the skins natural moisturizing factor. Very well tolerated at cosmetic levels.

Function

BUFFERINGHUMECTANTSKIN CONDITIONING

Skin benefits

  • Humectant component of skin NMF
  • Mild keratolytic at higher %
  • pH buffer
  • Skin conditioning

Known concerns

  • Mildly photosensitizing at AHA-level use
  • Stings on broken/sensitized 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.