Thylhexylglycerin ●
TL;DR. This ingredient is primarily used as a preservative booster and deodorant active, helping other preservatives perform more effectively while also adding light skin-conditioning benefit.
What does Thylhexylglycerin do in a cosmetic formula?
This ingredient is primarily used as a preservative booster and deodorant active, helping other preservatives perform more effectively while also adding light skin-conditioning benefit.
Is Thylhexylglycerin clean?
Clean-beauty standards generally allow it, but it can create mild irritation or stinging in sensitive users, especially in leave-on formulas or higher-use systems. It is not usually a restricted-list issue, but it is often flagged for scrutiny because it is synthetic and frequently paired with conventional preservative systems.
Is Thylhexylglycerin sustainable?
This material is typically synthetic, made from glycerin and a branched alcohol that may be petrochemical or partly plant-derived depending on supplier. It is expected to have better biodegradability than many persistent synthetics, but its sourcing is not automatically renewable.
Is Thylhexylglycerin COSMOS-approved?
It is permitted under COSMOS with conditions when the raw material route and supplier documentation meet the standard. From a Green Chemistry perspective, it is a moderate fit because it can be efficient at low levels, but renewable feedstock and process transparency depend on the manufacturer.
How does Thylhexylglycerin work chemically?
The molecule is an amphiphilic glyceryl ether, with a glycerin-like polar head and a branched hydrophobic tail that can disrupt microbial membrane integrity and improve preservative performance. Typical use is about 0.3% to 1.0%, often in combination with organic acids, alcohols, or phenoxyethanol, and it is generally stable across common cosmetic pH ranges.
Last updated 2026-05-13