Science
Mechanism of Action
It functions as an effective buffering agent, maintaining the pH of skincare formulations within an optimal range to ensure product stability. Additionally, it provides anticorrosive properties that help protect product containers from degradation.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Diammonium Phosphate is most stable in solutions with a pH between 7.5 and 8.2, but can gradually lose ammonia at room temperature. Decomposition begins around 70°C, and it is incompatible with strong acids, bases, oxidizing agents, and several metals including copper, iron, and aluminum.
Conflicts
- alkaline chemicals
- strong acids
- strong bases
- strong oxidizing agents
- copper and its alloys
- iron
- mild steels
- aluminum
- zinc
Safety
Safety Profile
The CIR Expert Panel concluded Diammonium Phosphate is safe for cosmetic use when formulated to be non-irritating. It is also approved by the U.S. FDA for specific general or limited food uses.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Diammonium Phosphate is a valuable additive for ensuring formulation stability and packaging integrity, though direct skin benefits are not established.
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