C13-16 Isoalkane
INCI: C13-16 isoparaffin
Reviewed by Kate · Last updated 14 Aug 2026
Also known as: C13-16 isoparaffin
A synthetic solvent but may also be plant-derived Used in blends meant to replace siloxane silicones
EWG Safety Score
What Is C13-16 Isoalkane?
C13-16 isoalkane is a synthetic solvent that may also be plant-derived (’s Choice Skincare uses the latter, and it is not palm-derived). It can be used on its own but more often is used in blends meant to replicate the sensory and smoothing properties of siloxane-type silicones. Other benefits include helping to reduce the viscosity (thickness) of a cosmetic formula as well as improving spreadability without leaving an occlusive feel.
This ingredient was formerly known as C13-16 isoparaffin. This retired name that as part of a safety assessment done in 2012, which deemed it safe in typical usage amounts between 0.4–18%.
Clinical Evidence & References
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C13-16 Isoalkane is a variant of C13-16 Isoparaffin, the form you will most often see on an ingredients list.
A lightweight solvent that helps dissolve and distribute other skincare actives
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