Isododecane
Isododecane
- Role
- A hydrocarbon solvent that makes the formula easier to apply and softer in feel.
- Catalog formulas
- 3
- Type
- Base
- Verified
- 09.11.2026
What does this ingredient do in an antiperspirant?
A branched hydrocarbon from the isoparaffin group (2,2,4,6,6-pentamethylheptane). INCI functions: solvent, emollient and fragrance ingredient.
Part of a system, not a label in isolation
In anhydrous formulas it serves as a solvent and part of the emollient base. It is not an antiperspirant active and does not reduce sweating.
In 2012 the CIR reviewed isoparaffins, including Isododecane, and concluded that they are safe in the present practices of use and concentration; according to the report they are used mainly as solvents and also as emollients.
It is generally used for texture; an individual reaction to the finished product is possible.
Neither a silicone nor a plant oil: it is a synthetic branched hydrocarbon, although in a formula it can play a carrier-solvent role similar to silicones.
Products containing Isododecane
Links are based on the complete published INCI list for the exact product version.
Sources
The conclusions apply to the stated conditions and jurisdictions, not automatically to every concentration or product.
- EU CosIng: Isododecane Supports: INCI functions
- COSMILE Europe (Cosmetics Europe): Isododecane Supports: substance identity
- CIR: Safety Assessment of Isoparaffins as Used in Cosmetics (2012) Supports: use in cosmetics, safety assessment