How we scored it
Erythorbic acid (fermentation, natural) + Na (mineral counter-ion) => 1.0
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.
Where it comes from
Sodium Erythorbate is made by neutralising fermentation-derived erythorbic acid with a sodium base. There is no significant petrochemical alternative route.
In plain English
The sodium salt form of erythorbic acid, used as an antioxidant to help protect formulas. Made by fermenting plant sugars and combining the result with sodium, a mineral.
Structure
sodium (2R)-2-[(1R)-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2H-furan-3-olate
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.
- 2Sodium Erythorbate. PubChem CID 23683938. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3SODIUM ERYTHORBATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4SODIUM ERYTHORBATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SODIUM%20ERYTHORBATE