Preservative
Glyoxal
Safety score · 0–100
Avoid
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Glyoxal — a reactive dialdehyde flagged with mutagenicity (H341), respiratory sensitisation (H334) and irritation hazards. EU-restricted to trace residual levels only; never appropriate as an active cosmetic ingredient.
Skin benefits
- Industrial preservative and tissue cross-linker (rarely appropriate in cosmetics)
Known concerns
- GHS H315/H319/H335 skin/eye/respiratory irritant
- H341 suspected germ-cell mutagen
- H334 may cause allergy or asthma if inhaled
- Reactive aldehyde — formaldehyde-related concerns
- EU restricted to trace levels in cosmetics
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, so always read the physical product label and consult a healthcare professional for personal concerns.