Science
Mechanism of Action
This ingredient sequesters metal ions, such as calcium and iron, preventing them from destabilizing formulations, degrading active ingredients, or compromising product aesthetics. Its action boosts preservative efficacy, stabilizes color, and improves foaming.
Research
Clinical Evidence
High confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Diammonium EDTA is an aqueous solution (1 wt% solution pH 4.6-5.3). EDTA salts exhibit increased water solubility with rising pH. Optimal chelating capacity for divalent cations increases significantly between pH 8 and 10, though some suggest optimal complexation around pH 6.
Synergies
- preservatives
- antioxidants
Safety
Safety Profile
The CIR Expert Panel reaffirmed Diammonium EDTA and other EDTA salts as safe in cosmetic use at concentrations below 2%. Systemic exposure from cosmetic application is minimal and well below toxic levels found in oral studies, with low skin irritancy and allergenicity.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Diammonium EDTA is a valuable ingredient for enhancing product integrity by stabilizing formulas, boosting preservative efficacy, and maintaining cosmetic aesthetics across various skin types.
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References
Sources