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Potassium Phosphate

POTASSIUM PHOSPHATE

Data confidence:High

Function

Buffer, pH Adjuster, Humectant, Skin Conditioning Agent

EWG Safety Score

2/10Low concern

About this ingredient

Potassium phosphate is an inorganic salt composed of potassium and phosphate ions that functions primarily as a buffering agent and pH regulator in cosmetic formulations. It helps maintain stable pH levels and enhance overall product stability, while also providing mild humectant properties that support skin hydration and moisture retention.

Found in 1+ sunscreens