Butyleneglycol ●
TL;DR. This ingredient is mainly used as a humectant and solvent, helping formulas hold water and dissolve actives, extracts, and preservatives. It can also improve slip and support preservative performance by lowering water activity.
What does Butyleneglycol do in a cosmetic formula?
This ingredient is mainly used as a humectant and solvent, helping formulas hold water and dissolve actives, extracts, and preservatives. It can also improve slip and support preservative performance by lowering water activity.
Is Butyleneglycol clean?
From a clean-beauty perspective, it is generally well tolerated and not a major restricted-list ingredient. The main friction is sourcing, since conventional grades are synthetic and may be petroleum-derived, while bio-based grades are viewed more favorably.
Is Butyleneglycol sustainable?
This material is commonly made from petrochemical feedstocks, though plant-sugar fermentation routes are available. It is readily biodegradable and has low persistence concerns, so the sustainability profile depends mostly on feedstock and manufacturing route.
Is Butyleneglycol COSMOS-approved?
Conventional synthetic grades are generally not aligned with COSMOS-natural or COSMOS-organic requirements, while certified natural-origin grades may be accepted when the supplier documentation supports the route. Its Green Chemistry fit is stronger when made from renewable feedstocks, with ready biodegradability and broad formulation efficiency as positives.
How does Butyleneglycol work chemically?
The molecule is a small, water-miscible diol with two hydroxyl groups, which explains its humectant, solvent, and texture-modifying behavior. It is typically used around 1 to 10 percent, is stable across normal cosmetic pH ranges, and is often placed in the water phase to help dissolve preservatives and botanical constituents.
Last updated 2026-05-13