DM-DM Hydantoin ●
TL;DR. This ingredient is a preservative used to protect water-containing formulas from microbial growth, especially bacteria. It helps maintain product integrity during storage and repeated consumer use.
What does DM-DM Hydantoin do in a cosmetic formula?
This ingredient is a preservative used to protect water-containing formulas from microbial growth, especially bacteria. It helps maintain product integrity during storage and repeated consumer use.
Is DM-DM Hydantoin clean?
From a clean-beauty perspective, this ingredient is a major friction point because it is a formaldehyde-releasing preservative. Many retailer and brand restricted lists exclude it, and it can be an issue for people sensitized to formaldehyde.
Is DM-DM Hydantoin sustainable?
This material is synthetic and generally made from non-renewable feedstocks, with limited renewable-sourcing value. It is water soluble and not known for bioaccumulation, but its formaldehyde-release profile weakens its environmental and green-chemistry fit.
Is DM-DM Hydantoin COSMOS-approved?
It is not permitted under COSMOS-natural or COSMOS-organic standards because formaldehyde-releasing preservatives are outside the allowed preservative list. Its synthetic sourcing and release chemistry make it a poor fit with Green Chemistry preferences for benign, readily acceptable preservation systems.
How does DM-DM Hydantoin work chemically?
The molecule is a small nitrogen-containing ring with methyl substitutions and hydroxymethyl groups that can release formaldehyde in aqueous systems. It is commonly used around 0.1% to 0.6%, is broadly effective across about pH 3 to 9, and release can increase with heat, time, and formulation conditions.
Last updated 2026-08-19