Preservative
Propionic acid and its salts
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A naturally occurring short-chain fatty acid used as a preservative in cosmetics. Effective against fungi and bacteria, but EU regulates it under Annex V with a 2% maximum and pH must be controlled.
Skin benefits
- Effective preservative against bacteria and fungi
- Naturally occurring organic acid
- Biodegradable
Known concerns
- EU Annex V: max 2% (as acid) in finished cosmetics
- Skin/eye irritant at higher concentrations
- Acidic pH demands neutralisation
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.