Sodium Metaphosphate

Sodium metaphosphate is an inorganic, water-soluble polyphosphate salt used in personal care and household formulas. It's chosen for its ability to bind metal ions, improve product stability, and support cleansing performance and rinsing.
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Ingredient Snapshot

Overview
A water-softening ingredient that helps cleansers rinse cleaner.
Category
Cleansing
Type
Chelating Agent

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

It helps prevent discoloration and off-odors by tying up trace minerals, keeping formulas fresher, and can improve cleansing in hard water for a cleaner after-feel.

Uses In Skincare & Cosmetics

It's often added to facial cleansers, shampoos, and toothpastes to support formula stability and promote easier rinse-away of soils.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

It's generally low risk in rinse-off products; mild irritation is possible if used at higher concentrations or if residue remains, especially in oral care for sensitive users. Avoid contact with irritated mucosa and rinse thoroughly if discomfort occurs.

Is Sodium Metaphosphate a Good Ingredient?

It rates Good because it effectively chelates trace metals at low use levels, helping formulas stay clear and perform consistently in water-based cleansers. It's functional and stable in solution, but it doesn't provide direct skin-conditioning benefits, which keeps it below the top tier.

Products with Sodium Metaphosphate

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