Disodium Phosphate

Disodium phosphate is the disodium salt of phosphoric acid, an inorganic compound used as a buffer and sequestrant in cosmetic and personal care products. It helps control pH and keeps aqueous formulas stable.
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Ingredient Snapshot

Overview
A buffer that keeps a formula's pH balanced and stable.
Category
Sensitive Skin
Type
Buffer

Ingredient Ratings

Overall Rating

Great

Comedogenic Risk

None

Skin Benefits

Helps keep formula acidity balanced for skin comfort and supports overall shelf stability. Aids in preventing unwanted shifts in texture or performance over time.

Uses In Skincare & Cosmetics

Used in toners, mists, lotions, and cleansers where stable pH is needed, including products for reactive or easily irritated skin.

Comedogenic Rating

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

Safety

Generally low irritation risk at typical concentrations. Higher amounts may be drying or irritating, so products should follow standard use levels. No notable cosmetic‑specific restrictions are commonly referenced.

Is Disodium Phosphate a Good Ingredient?

Great: a well‑established buffering salt that stabilizes pH reliably, is chemically stable, and has a low irritation profile at cosmetic use levels. Its inert nature helps maintain formula performance without adding reactivity.

Products with Disodium Phosphate

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