Potassium Polyphosphate

AKA: Polyphosphoric acid potassium salt

Synthetic

Chelating Agent

Clean

OriginDerived from phosphoric acid and potassium compounds through synthetic polymerization reactions. Produced by heating and condensing phosphoric acid with potassium salts under controlled conditions.

Polyphosphoric acid, potassium salts

CAS #

68956-75-2

Form

Powder

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

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

The paper trail

🔬Peer-reviewed1 paper →

⚖️Regulatory1 listing →

🛡️Safety-assessed2 reviews →

Counts, not a verdict. A listing isn't a study. The trail, you decide.

EWG

CIR

Safe as used

Pregnancy

Yes

Concentration Guide

CIR lists it as not reported to be in use.

CIR · report published 2021

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Verified Jun 2026

Data: CosIng · EWG · CIR