Potassium azelayl diglycinate is a potassium salt prepared by the reaction of azelaic acid and glycine. It still retains the biological efficacy of azelaic acid. This ingredient is milder than azelaic acid. After the introduction of glycine into azelaic acid, its derivatives have good water solubility and stable chemical properties, so this product can be more widely used in cosmetics.
Its raw material is white powder, which is easily soluble in water and insoluble in oil.
Items | Specifications | Results |
Appearance | White or off-white powder | Conforms |
Solubility | Soluble in water | Conforms |
pH(3%Water solution.) | 3% Aqueous solution should be 4.5-7.5 | 5.9 |
Loss on Drying | ≤1.0% | 0.5% |
Assay | ≥90.0% | 95.2% |
Pb(mg/kg) | ≤10.0 | Conforms |
As (mg/kg) | ≤2.0 | Conforms |
Cadmium (mg/kg) | ≤5.0 | Conforms |
Mercury (mg/kg) | ≤ 1.0 | Conforms |
Total number of colonies(CFU/g) | ≤500 | Conforms |
Molds and yeast(CFU/g) | <100 | Conforms |
Heat-resistant coliforms | Not detected | Conforms |
Staphylococcus aureus | Not detected | Conforms |
Pseudomonas aeruginosa | Not detected | Conforms |
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