What it is
Isodecane is a branched-chain saturated hydrocarbon with ten carbon atoms, used in cosmetics as a light, volatile emollient and carrier solvent. It spreads easily, leaves a dry non-greasy finish, and helps disperse other ingredients before evaporating. It is common in fast-absorbing lotions, sprays, and sun care products where a lightweight skin feel is desired.
Safety & warnings
Isodecane is generally well tolerated and non-sensitizing as used in cosmetics. As a volatile hydrocarbon it can have a mild defatting effect with heavy or repeated use.
Origin & sourcing
It is a synthetic hydrocarbon, typically derived from petroleum or produced synthetically.
Questions everyone asks
What does isodecane do?
It is a lightweight, volatile emollient and solvent that spreads easily, leaves a dry finish, and helps carry other ingredients before evaporating.
Is it greasy?
No. It is prized for a dry, fast-absorbing, non-greasy feel.