How we scored it
Where it comes from
Made by reacting fermentation-derived L-glutamic acid (from corn or beet sugar) with chloroacetic acid and sodium hydroxide to give the tetrasodium salt. A biodegradable EDTA alternative.
In plain English
A water softener that binds trace metal ions so cleansers foam and stay clear. Made from fermented plant sugar (glutamic acid) modified in a further chemical reaction step.
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Structure
tetrasodium;(2S)-2-[bis(carboxylatomethyl)amino]pentanedioate
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.
- 2Tetrasodium Glutamate Diacetate. PubChem CID 44630158. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3TETRASODIUM GLUTAMATE DIACETATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4TETRASODIUM GLUTAMATE DIACETATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=TETRASODIUM%20GLUTAMATE%20DIACETATE