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Ingredient Facts
Potassium polyphosphate
AKA: Polyphosphoric acid potassium salt
Ingredient · Chelating · EWG: 1
Synthetic
Chelating Agent
Clean
Polyphosphoric acid, potassium salts
CAS #
68956-75-2
Form
Powder
See origin →
Functions
Chelating
Grabs onto metal ions in water that would destabilize the formula. Keeps your product from going bad or changing color.
Removes Metal Ions
Binds metal ions
Traditional Use
A synthetic salt developed as a water softening and chelating agent in the 20th century. Used in cosmetics to improve product stability and prevent mineral interference.