Tris-Bht Mesitylene ●
TL;DR. This ingredient is an antioxidant and stabilizer used to slow oxidation in oil-rich formulas, pigments, fragrances, and packaging-adjacent systems. It helps protect product color, odor, and lipid stability rather than serving as a skin-active antioxidant.
What does Tris-Bht Mesitylene do in a cosmetic formula?
This ingredient is an antioxidant and stabilizer used to slow oxidation in oil-rich formulas, pigments, fragrances, and packaging-adjacent systems. It helps protect product color, odor, and lipid stability rather than serving as a skin-active antioxidant.
Is Tris-Bht Mesitylene clean?
From a clean-beauty perspective, this ingredient has friction because it is a synthetic antioxidant related to debated phenolic stabilizers. It is not a common fit for restricted-list-driven natural or organic product standards, though its large molecular size can limit skin penetration.
Is Tris-Bht Mesitylene sustainable?
This material is typically petrochemical-derived and not positioned as a renewable or low-impact ingredient. Its bulky, water-insoluble structure suggests limited biodegradability and a greater persistence profile than simple plant-derived antioxidants.
Is Tris-Bht Mesitylene COSMOS-approved?
It is not permitted under COSMOS organic or natural standards for standard cosmetic use. Its synthetic petrochemical origin, limited biodegradability, and persistence concerns make it a weak fit with Green Chemistry preferences.
How does Tris-Bht Mesitylene work chemically?
The molecule is a high-molecular-weight, sterically hindered phenolic antioxidant built around an aromatic core with multiple radical-quenching phenol groups. It is typically used at very low stabilizing levels, often in the 0.01% to 0.1% range, and is most relevant in anhydrous or oil-compatible systems where oxidation control is needed.
Last updated 2026-05-14