Methylpropanedio ●
TL;DR. This ingredient is a small glycol used mainly as a solvent, humectant, and preservative booster. It helps dissolve actives and fragrance components while improving water binding and formula feel.
What does Methylpropanedio do in a cosmetic formula?
This ingredient is a small glycol used mainly as a solvent, humectant, and preservative booster. It helps dissolve actives and fragrance components while improving water binding and formula feel.
Is Methylpropanedio clean?
It is generally well tolerated and is not a common allergen or major restricted-list ingredient in clean-beauty frameworks. The main clean-standard friction is that it is often synthetic and may be petroleum-derived, depending on supplier route.
Is Methylpropanedio sustainable?
This material is typically made from petrochemical feedstocks, although sourcing can vary by supplier. It is expected to be biodegradable and has low persistence concerns compared with silicone or fluorinated materials.
Is Methylpropanedio COSMOS-approved?
It is not a clear fit for COSMOS-organic or COSMOS-natural unless a certifier accepts a specific natural-origin supply route. From a Green Chemistry view, its small, biodegradable glycol structure is favorable, but fossil sourcing and synthetic manufacture keep it from strong alignment.
How does Methylpropanedio work chemically?
The molecule is a branched diol, so it is water-miscible and can reduce water activity while supporting preservative systems. It is generally stable across typical cosmetic pH ranges and is used in leave-on and rinse-off products at low single-digit percentages, with higher levels possible when it functions as a main solvent.
Last updated 2026-05-16