What it is
C13-16 Isoparaffin is a clear, low-viscosity blend of branched saturated hydrocarbons in the C13 to C16 range. It serves as a lightweight, spreadable carrier and is most commonly paired with polymeric emulsifiers, where it acts as the liquid phase that helps disperse and stabilize emulsions. In sunscreen formulas it improves slip and spreadability and contributes to a quick-absorbing, non-greasy feel.
Safety & warnings
Highly refined isoparaffins of this type are generally considered low-irritation and non-sensitizing for topical use, and the saturated branched structure resists oxidation. As a hydrocarbon oil it may feel occlusive, though the light molecular weight makes it relatively low on the comedogenicity scale; individuals prone to congestion may still prefer to monitor heavier formulations.
Origin & sourcing
Synthetic, produced from petroleum-derived feedstocks by polymerization and hydrogenation to yield a defined range of branched, saturated isoparaffins.
Questions everyone asks
Is C13-16 Isoparaffin natural or synthetic?
It is synthetic, manufactured from petroleum feedstocks into a defined blend of branched saturated hydrocarbons used as a lightweight solvent and emollient.
Why is it used in sunscreens?
It provides slip and easy spreadability and commonly works as the liquid carrier for polymeric emulsifiers, helping create stable, quick-absorbing textures.