How we scored it
Fermentation/enzymatic oxidation product of glucose; analogous to this site's method's listed fermentation acids (lactic, citric, kojic). 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
Manufactured by fermenting glucose, from corn or other starch, with Aspergillus niger, or by enzymatic oxidation of glucose. Both routes are natural-origin.
In plain English
A mild acid used to bind trace metals and adjust formulas. It is produced by fermenting glucose, typically from corn, with microorganisms.
Structure
(2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanoic 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.
- 2Gluconic Acid. PubChem CID 10690. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3GLUCONIC ACID. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4GLUCONIC ACID. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=GLUCONIC%20ACID