Is Sodium Iodide natural? NOI 1.00

Q: Is Sodium Iodide natural?

Sodium Iodide has a Natural Origin Index (NOI) of 1.00 (scale 0–1) per ISO 16128. Sodium and ionic iodide are mineral-derived (iodine from natural brines and caliche) and count as natural origin under ISO 16128. An NOI of 1.00 means 100% of its molecular mass is traceable to a natural, renewable source.

How we scored it

NaI is an inorganic salt: Na 22.99 + I 126.90 = 149.89 Da, all mineral (ionic iodide and 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 from iodine recovered from natural brines or Chilean caliche, reduced and neutralised with sodium hydroxide or carbonate. No petrochemical fragment is present.

In plain English

A simple salt of sodium and iodine, listed as an antimicrobial ingredient. It is made from iodine recovered from natural brines or mined deposits.

Structure

sodium iodide

PubChem CID 5238 ↗

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.
2Sodium Iodide. PubChem CID 5238. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
3SODIUM IODIDE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
4SODIUM IODIDE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SODIUM%20IODIDE