3-Acetyl-6-methylpyran-2,4(3H)-dione and its salts
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
3-Acetyl-6-methylpyran-2,4(3H)-dione and its salts is a cosmetic ingredient used in product formulation. Exercise caution due to limited available safety data.
Dehydroacetic acid and its salts (sodium dehydroacetate, calcium dehydroacetate) are listed in EU Annex VI as authorized preservatives with a maximum concentration of 0.6% calculated as acid in finished products. While it is widely used in cosmetics as a paraben-free alternative, its slight H302 classification means formulations must manage ingestion risk, and it is restricted specifically in oral hygiene and leave-on products.
Skin benefits
- Effective broad-spectrum preservative extending product shelf life
Known concerns
- Harmful if swallowed (H302)
- Restricted to 0.6% in leave-on products per EU Annex VI
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 — always read the physical product label and consult a healthcare professional for personal concerns.