C18-20 Glycol Isostearate ●
TL;DR. This ingredient functions mainly as an emollient and structuring agent, adding cushion, slip, and a soft waxy feel to creams, sticks, and color cosmetics. It can also help improve pigment wetting and formula body.
What does C18-20 Glycol Isostearate do in a cosmetic formula?
This ingredient functions mainly as an emollient and structuring agent, adding cushion, slip, and a soft waxy feel to creams, sticks, and color cosmetics. It can also help improve pigment wetting and formula body.
Is C18-20 Glycol Isostearate clean?
It has a generally low irritation profile and is not a common clean-standard restricted material. The main clean-beauty questions are feedstock traceability and whether any residual processing aids or impurities are well controlled.
Is C18-20 Glycol Isostearate sustainable?
This material is typically based on long-chain fatty chemistry that may be plant-derived, petroleum-derived, or mixed, depending on the supplier. It is expected to biodegrade more slowly than short-chain esters because of its waxy, hydrophobic structure, and palm-related sourcing may need documentation if relevant.
Is C18-20 Glycol Isostearate COSMOS-approved?
It may align with COSMOS-natural when made from permitted natural-origin feedstocks using accepted esterification chemistry, but supplier documentation is needed. From a Green Chemistry view, it is a partial fit when renewable inputs and low-residue processing are used, with a caveat around slower biodegradation.
How does C18-20 Glycol Isostearate work chemically?
The molecule is a high-molecular-weight, branched fatty ester with a hydrophobic wax-like character, which explains its slip, payoff, and structuring behavior. It is generally stable across typical anhydrous and emulsion pH ranges, and formulators use heat to incorporate it into the oil phase because it is not water-soluble.
Last updated 2026-05-16