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pH Adjuster

TARTARIC ACID

CAS 133-37-9 / 147-71-7 / 87-69-4
80

Safety score · 0–100

Good

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

Tartaric acid — a fruit-derived AHA from grapes used to gently exfoliate and balance pH. Safe at typical cosmetic levels; pair with sunscreen.

Function

BUFFERINGFRAGRANCE

Skin benefits

  • AHA exfoliant from grapes
  • pH adjuster and chelator
  • Brightens skin tone
  • Food-grade safety

Known concerns

  • Mild acid stinging at higher %
  • Increases UV sensitivity
  • Eye irritant in concentrate

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.