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Disodium Phosphate

DISODIUM PHOSPHATE

Data confidence:High

Function

pH Buffer, Chelating Agent

EWG Safety Score

1/10Low concern

About this ingredient

Disodium phosphate is an inorganic salt derived from phosphoric acid that functions as a pH buffer and chelating agent in cosmetic formulations. It maintains stable pH levels, improves formula stability, and prevents oxidation and metal ion-induced degradation, thereby extending product shelf life and efficacy.

Found in 1+ sunscreens