Science
Mechanism of Action
Disodium tartrate stabilizes cosmetic formulations by precisely adjusting pH levels, which in turn supports the skin's natural barrier function. It also acts as an emulsifier, preventing product separation, and contributes antioxidant properties for comprehensive skin benefits.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This ingredient is highly water-soluble, dissolving at approximately 290-300 g/L at 20°C, and also soluble in alcohols and ethers. It demonstrates stability under typical conditions, maintaining thermodynamic integrity up to 350°C, with a phase transition at 230°C. While generally stable, it undergoes dehydration and decomposes above its melting points (around 150°C for the dihydrate form, 195°C for the anhydrous form). A 5% aqueous solution of disodium tartrate registers a pH between 7.0 and 9.0 at 20-25°C.
Conflicts
- strong oxidizing agents
Safety
Safety Profile
Disodium tartrate is recognized as safe (GRAS) by the FDA for direct human food consumption and is approved for use as an inert ingredient in non-food pesticide products. Safety data indicates it is not classified as corrosive or irritating to the skin or eyes, nor as a respiratory or skin sensitizer. The Cosmetic Ingredient Review (CIR) Expert Panel has not thoroughly reviewed disodium tartrate for cosmetic use, previously noting insufficient data for tartrates and related ingredients.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Disodium tartrate is a valuable ingredient for stabilizing cosmetic formulations and indirectly supporting skin health through precise pH regulation, emulsification, and antioxidant activity.
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References
Sources