Is Potassium Sulfate natural? NOI 1.00

Q: Is Potassium Sulfate natural?

Potassium Sulfate has a Natural Origin Index (NOI) of 1.00 (scale 0–1) per ISO 16128. Simple inorganic mineral salt; potassium and sulfate are both mineral-origin per ISO 16128. An NOI of 1.00 means 100% of its molecular mass is traceable to a natural, renewable source.

How we scored it

K2SO4 inorganic mineral salt; both potassium and sulfate are mineral-origin counter-ions.

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

Potassium sulfate is mined or crystallized from mineral brines/potash deposits, or made by reacting potassium chloride with sulfuric acid. Both ions are mineral in origin.

In plain English

A mineral salt used to control thickness in cosmetic formulas. It comes from potash minerals or is made by combining potassium and sulfate minerals.

Structure

dipotassium;sulfate

PubChem CID 24507 ↗

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.
2Potassium Sulfate. PubChem CID 24507. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
3POTASSIUM SULFATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
4POTASSIUM SULFATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POTASSIUM%20SULFATE