Fragrance
HEXYL FORMATE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
The formate ester of n-hexanol giving fresh green-fruity notes. FEMA GRAS; formate esters hydrolyze to formic acid so use-level awareness applies.
Hexyl formate (CAS 629-33-4) is the formate ester of n-hexanol, used in flavor (FEMA GRAS) and fragrance for fresh, green, fruity notes reminiscent of plum and apple. Formate esters have lower hydrolytic stability than acetates and gradually release n-hexanol (well-tolerated) and formic acid (mild irritant at meaningful concentrations). At normal fragrance use levels this is not practically problematic, but the prior database score of 100 was unwarranted given normal ester hydrolysis behavior. Not a classified sensitizer; not an EU Annex III declared allergen.
Function
Skin benefits
- Green-fruity fragrance note
- FEMA GRAS
- Common perfumery ingredient
Known concerns
- Formate hydrolysis to formic acid
- Normal fragrance allergen load
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related fragrances
Check your shelf
Find HEXYL FORMATE in your products.
Scan any cosmetic product with LuxSense to see if it contains HEXYL FORMATE and get a full ingredient breakdown with safety scores.
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.