Magnesium Ascorbyl Phosphate is a stable, water soluble derivative of Vitamin C (L-Ascorbic acid mono-dihydrogen phosphate magnesium salt). Unlike L-Ascorbic Acid, it does not readily degrade in formulas containing water.  It is considered light-stable and oxygen-stable. Studies of MAP in aqueous solutions indicate it retains over 95% of its potency at 40°C without any pH adjustment.
 
Magnesium Ascorbyl Phosphate (MAP) may discolor in formulations with a pH below 6, so is best used in products with a final formulation pH between 6.0 - 9.0.   MAP is stable at 80C/176F for up to 20 hours; this means that it should withstand heating to this temperature for short periods in formulations without a problem.
 
The recipe should contain Disodium EDTA 0.05% due to metal ion impurity in the formula Can affect the stability of Magnesium Ascorbyl Phosphate (MAP) is available.
 
Usage Rate: 0.5 - 10%
Water Soluble
Product Types: Cream , Lotion , Clear Gel , Toner , Mask
Add to water phase
Appearance: white to pale yellow powder