pH Adjuster
TRIPOTASSIUM PHOSPHATE
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A strongly alkaline mineral salt used at low percentages as a pH adjuster and buffer. Concentrated solutions are corrosive, but the diluted in-product levels are skin-safe.
Function
Skin benefits
- Effective pH adjuster and buffer
- Recognized food-grade safety in dilute form
- Fully water-soluble
Known concerns
- Corrosive at concentrated levels (GHS05/07, signal Danger)
- Strongly alkaline — burns possible if neat
- Not for leave-on at high %
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related ph adjusters
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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.