Preservative
Benzoic acid and its sodium salt
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A widely used cosmetic preservative and pH adjuster (benzoic acid and sodium benzoate) that prevents microbial growth. EU-allowed at restricted concentrations depending on product type.
Skin benefits
- Effective preservative against mould and yeast
- Useful pH adjuster
- Naturally occurring in some fruits
Known concerns
- EU restricted use levels by product type
- Possible mild irritation in sensitive skin
- Pseudo-allergic reactions 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.