How we scored it
Inorganic mineral salt Zn3(PO4)2; zinc and phosphate are both mineral-derived per ISO 16128, no organic fragment.
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
Zinc phosphate is manufactured by reacting a zinc salt with phosphoric acid (from phosphate rock). It is a purely inorganic mineral compound used in oral-care buffering.
In plain English
A mineral compound used in toothpaste and oral care as a buffering ingredient. Made by combining zinc with phosphate, both derived from mined minerals.
CosIng definition: Zinc Phosphate is the inorganic compound that conforms to the formula
Structure
trizinc diphosphate
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.
- 2Zinc Phosphate. PubChem CID 24519. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3ZINC PHOSPHATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4ZINC PHOSPHATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=ZINC%20PHOSPHATE