How we scored it
K+ (mineral metal ion) and PO4^3- (phosphate); both natural-origin per mineral convention → 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
An inorganic mineral salt produced from potassium hydroxide or carbonate and phosphoric acid. Classed as natural origin because both the potassium and phosphate fragments are mineral-derived.
In plain English
An inorganic mineral salt of potassium and phosphate. Used to buffer and stabilise the pH of cosmetic formulations.
CosIng definition: Tripotassium Phosphate is the inorganic salt that conforms to the formula:
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.
- 2TRIPOTASSIUM PHOSPHATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3TRIPOTASSIUM PHOSPHATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=TRIPOTASSIUM%20PHOSPHATE