Preservative
POTASSIUM PROPIONATE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
The potassium salt of propionic acid, used as a mild preservative against mold and yeast. Food-grade safety profile; may slightly irritate the eyes at higher use levels.
Function
Skin benefits
- Antimicrobial preservative (mold/yeast)
- Naturally occurring organic acid salt
- Effective at low percentages
Known concerns
- May cause eye irritation
- Possible mild skin sensitization in rare cases
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related preservatives
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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.