Science
Mechanism of Action
Operating as a potent pH regulator and buffering agent, Sodium Phosphate maintains a stable environment essential for skin barrier function, with its various forms enabling precise pH control across a spectrum of 4.5 to 12. Its polarized molecules facilitate enhanced penetration of active ingredients into the skin. This compound also supports skin hydration by balancing moisture levels and contributes to cellular vitality by providing phosphate units crucial for ATP synthesis, thereby energizing skin cell growth and renewal. Additionally, it functions as a preservative, an emulsifying and thickening agent, and can soften hard water for improved cleansing.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Sodium Phosphate is highly stable in cosmetic formulations, primarily serving to regulate and stabilize the product's pH across a wide range (4.5 to 12) depending on the specific phosphate form used.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed Sodium Phosphate and its associated salts safe for use in cosmetics, provided formulations are non-irritating. While typical concentrations are often below 0.086%, safety is contingent on specific phosphate form and overall product composition. The FDA's Generally Recognized As Safe (GRAS) classification for food-grade sodium phosphate underscores its strong toxicological profile, though this status is not directly applicable to cosmetic approval.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Sodium Phosphate is a valuable multi-functional ingredient, integral for precise pH regulation, product stability, and enhancing the efficacy of other active ingredients in skincare formulations.
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