How we scored it
Gluconic acid (fermentation, natural) + Zn2+ (mineral, natural); salt formation loses no mass → 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
Made by neutralising fermentation-derived gluconic acid with a zinc mineral source. No petrochemical route is used.
In plain English
A conditioning, antimicrobial ingredient combining mineral zinc with gluconic acid made by fermenting glucose. Used in deodorants and oral care for conditioning and antimicrobial effects.
CosIng definition: Zinc Gluconate is the zinc salt of gluconic acid that conforms to the formula:
Structure
zinc bis((2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanoate)
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.
- 2Zinc Gluconate. PubChem CID 443445. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3ZINC GLUCONATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4ZINC GLUCONATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=ZINC%20GLUCONATE