formaldehyde releasing preservative
BENZYLHEMIFORMAL
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Benzylhemiformal is a formaldehyde releasing preservative restricted to rinse off cosmetics at up to 0.15 percent in the EU. PubChem GHS data flag it as harmful to skin and eyes with the Danger signal word.
Skin benefits
- Effective formaldehyde donor preservative in rinse off products
- Broad spectrum antimicrobial activity
Known concerns
- PubChem GHS H302 harmful if swallowed, signal Danger
- GHS H312 harmful in contact with skin
- GHS H315 skin irritation, H318 serious eye damage
- Formaldehyde release linked to allergy and EU restriction to rinse off use up to 0.15 percent
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.