How we scored it
Citrate (fermentation, C6H5O7) x2 + Cu (mineral ion) x3 — all fragments natural → 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 citric acid with a copper mineral source. No petrochemical route exists for either fragment.
In plain English
A copper salt of citric acid, the acid found in citrus fruit and made industrially by fermenting sugar. Used in skincare as an antimicrobial and to deliver copper to the skin.
Structure
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.
- 2Copper Citrate. PubChem CID 120942. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3COPPER CITRATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4COPPER CITRATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=COPPER%20CITRATE