Sodium Polyphosphate

AKA: Sodium Hexametaphosphate, Chelating Agent

Synthetic

Chelating Agent

Clean

Polyphosphoric acids, sodium salts

CAS #

68915-31-1

Form

Powder

Functions

Chelating

Grabs onto metal ions in water that would destabilize the formula. Keeps your product from going bad or changing color.

Anti-Inflammatory

Antimicrobial

Fights Acne

Binds metal ions

Traditional Use

A synthetic inorganic salt developed in industrial chemistry. Used in cosmetics as a water softener, chelating agent, and pH buffer.

EWG

CIR

Safe as used

Pregnancy

Yes

CIR Safety Findings

Not a Sensitizer

medical-approval

all-shades-safe

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

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.

Verified Jun 2026

Data: CosIng · EWG · CIR