Pe
Pentasodium Triphosphate
Pentasodium Triphosphate
A salt that grabs trace metals, which would otherwise speed spoilage or color change. It can also steady pH.
What it does
It’s there to keep the formula stable, not to change your skin.
The evidence, graded
expert consensusUS safety reviewers (2021) assessed phosphoric acid and its salts, 31 ingredients that products use to hold or adjust pH, bind metals or stop corrosion. Their index lists potassium phosphate, dipotassium phosphate, disodium phosphate, sodium phosphate, sodium metaphosphate and pentasodium triphosphate under that report. They judged them safe as used, in products made not to irritate.Johnson 2021 · International Journal of Toxicology ↗
Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.
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