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GUANIDINE PHOSPHATE

CAS 5423-22-3
65

Safety score · 0–100

Fine

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

About

A buffering agent and pH adjuster used in cosmetic formulations, though it has limited widespread use in the industry.

Guanidine phosphate is an inorganic salt that functions as a buffering agent in cosmetic preparations. It has limited toxicological data in cosmetic contexts, and while not specifically restricted under EU cosmetics regulation, it is not one of the most extensively studied cosmetic ingredients. Its phosphate content warrants consideration in formulations targeting sensitive skin.

Skin benefits

  • Buffering agent helps maintain product stability

Known concerns

  • Limited toxicological data for cosmetic use
  • May cause mild skin irritation in sensitive individuals

References

EU

EU CosIng database

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

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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.