How we scored it
Cu2+ 63.5 Da (mineral ion, natural) + 2x aspartate C4H6NO4 264.2 Da (fermentation amino acid) = 327.7/327.7 = 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 reacting a copper salt with fermentation-derived L-aspartic acid. No significant alternative route exists.
In plain English
A copper salt of the amino acid aspartic acid, used in skin and hair conditioning products. The copper comes from mineral sources and the aspartic acid from fermentation.
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 ASPARTATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3COPPER ASPARTATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=COPPER%20ASPARTATE