What it is
C13-14 Alkane is a blend of branched saturated hydrocarbons in the C13 to C14 range, valued for a dry, silky slip and quick absorption. It is frequently sourced from renewable plant feedstocks and positioned as a natural-origin substitute for cyclomethicone and other volatile silicones in tone-up and mineral sunscreens. In formulas it improves spreadability, helps disperse pigments and UV filters, and leaves a soft, weightless finish.
Safety & warnings
Saturated hydrocarbon emollients of this type are generally well tolerated and low in irritancy and sensitization potential. They are typically considered low on the comedogenicity scale, though very rich formulas may not suit acne-prone users.
Origin & sourcing
Commonly produced from renewable plant-derived feedstocks such as sugarcane or other bio-based sources, then processed into a defined-chain-length saturated hydrocarbon; petroleum-derived grades also exist.
Questions everyone asks
Is C13-14 Alkane a silicone?
No. It is a plant-derivable saturated hydrocarbon used as a lightweight emollient and is often chosen as a natural-origin alternative to volatile silicones.
Why is it used in sunscreens?
It gives a fast-spreading, non-greasy slip, helps disperse UV filters and pigments evenly, and leaves a soft, weightless finish.