Methyipropanediol ●
TL;DR. This ingredient is used mainly as a solvent and humectant, helping dissolve actives, improve skin feel, and support preservative performance in water-based formulas.
What does Methyipropanediol do in a cosmetic formula?
This ingredient is used mainly as a solvent and humectant, helping dissolve actives, improve skin feel, and support preservative performance in water-based formulas.
Is Methyipropanediol clean?
From a clean beauty perspective, it is generally well tolerated and not a major allergen or sensitizer. The main friction is that it is a synthetic solvent, so some stricter natural-focused standards may not accept it.
Is Methyipropanediol sustainable?
This material is commonly produced from petrochemical feedstocks, which limits its renewable-sourcing profile. It is water soluble and expected to biodegrade, with low concern for bioaccumulation.
Is Methyipropanediol COSMOS-approved?
This ingredient is generally not aligned with COSMOS-organic or COSMOS-natural when made by conventional synthetic routes. It fits some Green Chemistry goals through low use levels and biodegradability, but it falls short on renewable feedstock and natural-standard compatibility.
How does Methyipropanediol work chemically?
The molecule is a small, branched, water-miscible diol with two primary hydroxyl groups, which gives it strong solvent and humectant behavior. It is commonly used around 1 to 10% in leave-on formulas, is stable across typical cosmetic pH ranges, and can support preservation by reducing available water.
Last updated 2026-08-22