potassium phosphate

Potassium phosphate is a synthetic mineral-derived ingredient primarily used in cosmetics to adjust (buffer) the formula’s pH value.

References for this information:

Journal of Research in Medical Sciences, November 2016, ePublication
Photochemical and Photobiological Sciences, December 2007, pages 263–268
https://www.cir-safety.org/supplementaldoc/safety-assessment-phosphoric-acid-and-its-salts-used-cosmetics

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