How we scored it
Where it comes from
Manufactured by reacting acetic acid or anhydride with phosphorus trichloride, both petrochemical intermediates. No natural-origin production route exists.
In plain English
A chelating agent that binds metal ions to stabilise formulas and improve how preservatives and surfactants perform. It is a fully synthetic compound manufactured from acetic acid and phosphorus chemicals.
CosIng definition: Etidronic Acid is the organic diphosphonic acid that conforms to the formula
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Structure
(1-hydroxy-1-phosphonoethyl)phosphonic acid
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.
- 2Etidronic Acid. PubChem CID 3305. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3ETIDRONIC ACID. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4ETIDRONIC ACID. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=ETIDRONIC%20ACID