How we scored it
C6H8O6, MW176: all 6 C trace to D-glucose (starch-derived); oxidation to the lactone uses reagents that leave no mass in the product → 176/176 = 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 oxidation of glucose derived from corn or other starch. No petrochemical production route is used commercially.
In plain English
A sugar-derived ingredient made from cornstarch glucose, used to condition skin. It occurs naturally in the body and plants, and is produced industrially by a simple oxidation of plant sugar.
CosIng definition: D-Glucuronic acid, .gamma.-lactone
Structure
(2R)-2-[(2S,3R,4S)-3,4-dihydroxy-5-oxooxolan-2-yl]-2-hydroxyacetaldehyde
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.
- 2Glucuronolactone. PubChem CID 92283. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3GLUCURONOLACTONE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4GLUCURONOLACTONE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=GLUCURONOLACTONE