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Chelating Agent

TETRASODIUM PYROPHOSPHATE

CAS 7722-88-5 Updated
72

Safety score · 0–100

Fine

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

About

An inorganic salt used as a chelator and buffer in cleansers and toothpaste. Generally safe at cosmetic use levels; mildly alkaline so well-formulated products neutralize any sting.

Function

ANTICAKINGBUFFERINGCHELATINGORAL CARE

Skin benefits

  • Sequesters metal ions to stabilize formula
  • Buffers pH
  • Improves cleanser performance

Known concerns

  • Mildly irritating to skin/eyes at high %
  • Alkaline; can disrupt skin barrier if unbuffered

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.