What it is
Ethyl Hexanoate is the ethyl ester of hexanoic (caproic) acid, a small volatile molecule with a sweet, fruity, apple- or pineapple-like odor. In cosmetic and sunscreen formulas it is used as a fragrance ingredient and can act as a light solvent or carrier for scent. It is present at very low levels and does not contribute to UV protection.
Safety & warnings
Used at the low concentrations typical of fragrance ingredients it is generally well tolerated. As a scent component it may contribute to fragrance sensitivity in individuals prone to reacting to perfumed products, so fragrance-sensitive users should take note. It is not classed as a comedogenic oil.
Origin & sourcing
Occurs naturally in many fruits and fermented products; the cosmetic-grade material is typically produced by esterification of hexanoic acid with ethanol.
Questions everyone asks
Why is ethyl hexanoate in sunscreen?
It is added in small amounts as a fragrance ingredient to give the product a pleasant fruity scent.
Is it a UV filter?
No, it has no sun-protective function and is used for scent.