Sodium Polyphosphate
AKA “Sodium Hexametaphosphate, Chelating Agent”
Synthetic
Ingredient Facts
Sodium polyphosphate
AKA: Sodium Hexametaphosphate, Chelating Agent
Synthetic · Antioxidant · EWG: 4
Synthetic
Antioxidant
Chelating Agent
Barrier Support
Synthetic
Clean
Helps stabilize formulas and prevent ingredients from breaking down, keeping your product effective from first use to last.
CAS #
68915-31-1
Form
Powder
See origin →
Functions
Chelating
Grabs onto metal ions in water that would destabilize the formula. Keeps your product from going bad or changing color.
Buffering
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
Skin Protecting
Helps rebuild and strengthen your skin barrier — the invisible shield that keeps moisture in and irritants out. Essential after over-exfoliating or harsh weather.
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.
Skin Types
●all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: CosIng · EWG · CIR