How we scored it
Ba2+ (metal ion, mineral) + S2- (elemental sulfide); both natural-origin per mineral convention, produced from barite ore → 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
Manufactured by reducing barite (natural barium sulfate ore) with carbon at high temperature. Classed as mineral/natural origin under ISO 16128 mineral-processing conventions.
In plain English
An inorganic mineral salt made by reducing barite ore with carbon. Used as a chemical depilatory that breaks down the protein structure of hair for hair-removal products.
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.
- 2Barium Sulfide. PubChem CID 6857597. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3BARIUM SULFIDE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4BARIUM SULFIDE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=BARIUM%20SULFIDE