Preservative
FORMALDEHYDE
Safety score · 0–100
Avoid
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
An IARC Group 1 human carcinogen and one of the most hazardous substances in cosmetics history. Banned from EU cosmetics under Annex II. Strong sensitizer with severe irritation and genotoxicity concerns.
Skin benefits
- No legitimate cosmetic use in EU
Known concerns
- EU Annex II banned in cosmetics
- IARC Group 1 carcinogen
- Strong skin and respiratory sensitizer
- Mutagenic and genotoxic
- Severe eye and mucosal irritant
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.