How we scored it
Citrate (fermentation-derived organic acid, natural) + silver (natural metal ion) -> 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 combining a silver salt with fermentation-derived citric acid. Silver is mined; citric acid is produced by fungal fermentation of sugars.
In plain English
An antimicrobial and deodorising ingredient combining silver with citric acid. Citric acid comes from sugar fermentation; silver is a naturally occurring mined metal.
CosIng definition: Silver Citrate is the organic salt that conforms to the formula:
Structure
trisilver;2-hydroxypropane-1,2,3-tricarboxylate
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.
- 2Silver Citrate. PubChem CID 101599. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3SILVER CITRATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4SILVER CITRATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SILVER%20CITRATE