Butylene Gycol ●
TL;DR. This ingredient is primarily a humectant and solvent, helping formulas hold water, dissolve actives and fragrance components, and improve slip. It can also support preservative performance by lowering water activity.
What does Butylene Gycol do in a cosmetic formula?
This ingredient is primarily a humectant and solvent, helping formulas hold water, dissolve actives and fragrance components, and improve slip. It can also support preservative performance by lowering water activity.
Is Butylene Gycol clean?
From a clean-beauty perspective, it is generally considered low-sensitizing and well tolerated, with little restricted-list friction in mainstream standards. Stricter natural frameworks may question conventional synthetic grades because of feedstock and processing origin rather than routine skin compatibility.
Is Butylene Gycol sustainable?
This material is commonly made from petrochemical feedstocks, though bio-based versions exist. It is readily biodegradable and not known for environmental persistence, so the main sustainability question is sourcing.
Is Butylene Gycol COSMOS-approved?
Conventional synthetic grades are not a straightforward fit for COSMOS-organic or COSMOS-natural, while compliant bio-based grades may be eligible when the full supply chain and processing meet the standard. Its Green Chemistry profile is stronger when renewable feedstocks are used, and it benefits from good biodegradability and broad formula efficiency.
How does Butylene Gycol work chemically?
The molecule is a small, water-miscible four-carbon diol with two hydroxyl groups, which gives it strong water-binding and solvent behavior. It is commonly used around 1 to 10%, is stable across typical cosmetic pH ranges, and can help preservative systems by reducing available water.
Last updated 2026-05-13