Is Aluminum Zinc Oxide natural? NOI 1.00

Q: Is Aluminum Zinc Oxide natural?

Aluminum Zinc Oxide has a Natural Origin Index (NOI) of 1.00 (scale 0–1) per ISO 16128. Zinc and aluminium oxides are mined or smelted mineral materials 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

Mixed mineral oxide (2 ZnO.Al2O3, Zn2Al2O5, 264.7 Da); metal oxides are mineral, natural origin. 264.7 / 264.7 = 1.00.

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 high-temperature reaction of zinc oxide and alumina, both from mineral ores. No petrochemical route applies.

In plain English

A white mineral powder made from zinc and aluminium oxides. It adds opacity, bulk and absorbency to powders and makeup and is listed as a deodorant and binding ingredient. It is a purely inorganic material.

Structure

dialuminum;dizinc;pentakis(oxygen(2-))

PubChem CID 166598 ↗

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.
2Aluminum Zinc Oxide. PubChem CID 166598. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
3ALUMINUM ZINC OXIDE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
4ALUMINUM ZINC OXIDE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=ALUMINUM%20ZINC%20OXIDE