Isododecane | Ingredient | INCI GuideIsododecane is a synthetic aliphatic hydrocarbon with a branched structure. It is a safe, non-irritating, and non-comedogenic cosmetic-grade solvent and emollient with low viscosity, good volatility, spreadability, and drying time. It is a relatively inert, colorless, odorless ingredient suitable for almost all types of skin, hair, sun, and lip care preparations.