Methylal ●
TL;DR. This ingredient is a fast-evaporating solvent and carrier, mainly used for quick dry-down, spray delivery, or dissolving resins and fragrance materials.
What does Methylal do in a cosmetic formula?
This ingredient is a fast-evaporating solvent and carrier, mainly used for quick dry-down, spray delivery, or dissolving resins and fragrance materials.
Is Methylal clean?
From a clean-beauty perspective, it has friction because it is a highly volatile synthetic solvent with inhalation and eye-irritation considerations in spray formats. It is not a typical choice in natural-positioned leave-on care, and quality control matters because it is made using methanol and formaldehyde chemistry.
Is Methylal sustainable?
This material is usually fossil-derived, although renewable methanol routes are possible in principle. It has low bioaccumulation potential and is expected to biodegrade, but its high volatility makes air emissions a larger issue than water persistence.
Is Methylal COSMOS-approved?
It is not permitted as an ingredient under COSMOS-natural or COSMOS-organic standards. Its Green Chemistry fit is limited by conventional petrochemical feedstocks and formaldehyde-based manufacture, despite low persistence and a simple degradation profile.
How does Methylal work chemically?
The molecule is a small, neutral acetal with two ether oxygens, giving strong solvency, a boiling point around 42 °C, and very rapid evaporation. It is generally stable around neutral pH but can hydrolyze under acidic aqueous conditions, so formulators use it mainly in low-water or aerosol systems where fast release is desired.
Last updated 2026-08-17