How we scored it
Where it comes from
Acetone, cyanide and ammonium carbonate (or acetone cyanohydrin) give 5,5-dimethylhydantoin, which is hydroxymethylated with formaldehyde. No bio-based route is commercial.
In plain English
A synthetic preservative that stops bacteria and fungi growing in water-based products. It is made in a factory from acetone, cyanide, ammonia and formaldehyde.
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Structure
1-(hydroxymethyl)-5,5-dimethylimidazolidine-2,4-dione
References
- 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
- 2MDM Hydantoin. PubChem CID 67000. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3MDM HYDANTOIN. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4MDM HYDANTOIN. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=MDM%20HYDANTOIN