Tridecane

Tridecane is a straight-chain hydrocarbon (an alkane) almost always used alongside undecane as a light, quick-absorbing emollient and silicone substitute. As with undecane, it has not been reviewed individually, but it sits in the same simple-hydrocarbon family CIR has assessed without flagging genotoxicity, reproductive, developmental, or carcinogenicity concerns across the concentrations tested.

Cosmetic information for general education, not medical advice. A verdict is a reading of the published evidence, never a guarantee for your skin: any ingredient can irritate someone, so patch test new products and see a professional if you react. Concern is graded on cited evidence, never on hazard-score lists. See how we score.