Chelating Agent
POTASSIUM METAPHOSPHATE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A potassium polyphosphate salt used in cosmetics for buffering and chelating — well-known from food use, with a strong safety record at cosmetic levels. Avoid inhaling the dry powder.
Function
Skin benefits
- Inorganic phosphate buffering and chelating
- Long history of food and cosmetic use
- Compatible with rinse-off systems
Known concerns
- Avoid inhalation of powder form
- Possible mild eye irritation
- No significant concerns at typical levels
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related chelating agents
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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.