How we scored it
Pure metallic element Sn, no organic fragments to split; treated as a mineral raw material under ISO 16128 mineral convention. 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
Refined from cassiterite (tin oxide) ore by mining and smelting. No petrochemical or organic-synthesis route exists for this element.
In plain English
Metallic tin, used in cosmetics as a surface modifier. It is mined and refined from tin ore rather than made from petrochemicals or plants.
CosIng definition: Tin is a metallic element
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.
- 2TIN. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3TIN. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=TIN