Isocetyl Stearate ●
TL;DR. This ingredient is an emollient ester that gives formulas slip, softness, and a cushioned afterfeel. It is commonly used in creams, lotions, makeup, sunscreens, and hair products to improve spread and reduce greasiness from heavier oils.
What does Isocetyl Stearate do in a cosmetic formula?
This ingredient is an emollient ester that gives formulas slip, softness, and a cushioned afterfeel. It is commonly used in creams, lotions, makeup, sunscreens, and hair products to improve spread and reduce greasiness from heavier oils.
Is Isocetyl Stearate clean?
From a clean-beauty perspective, it is generally well tolerated and not a major restricted-list ingredient. The main caveat is sourcing and processing, since some versions are synthetic or partly petrochemical rather than clearly natural-origin.
Is Isocetyl Stearate sustainable?
This material can be made from fatty raw materials plus a branched alcohol component, with supply chains that may be plant-derived, petrochemical, or mixed. It is expected to be biodegradable like many long-chain esters, but renewable alignment depends heavily on the feedstock source.
Is Isocetyl Stearate COSMOS-approved?
It may fit COSMOS-natural or COSMOS-organic standards only when the feedstocks and esterification process meet natural-origin rules. From a Green Chemistry view, the ester chemistry is relatively straightforward, but petrochemical or unclear feedstocks weaken its alignment.
How does Isocetyl Stearate work chemically?
The molecule is a branched, long-chain ester, which makes it oil-soluble, low-polarity, and useful for improving glide without a heavy waxy feel. Typical use levels are often around 1 to 10 percent, and it is broadly stable in anhydrous and standard emulsion systems but can hydrolyze under strongly acidic or alkaline conditions.
Last updated 2026-05-13