The Ordinary Magnesium Ascorbyl Phosphate Solution 10%.A Brightening Hydrator with Stabilized Vitamin C Derivative.Vitamin C is an effective antioxidant, brightens the skin tone and reduces signs of ageing. In its pure form, Vitamin C is unstable in water. Magnesium Ascorbyl Phosphate (MAP) is a water-soluble derivative of Vitamin C. It is more stable in water but it is less potent than direct L-Ascorbic Acid. It is compatible with water but higher concentrations cannot be offered in a low-viscosity serum format and requires emulsification to form a cream. This formula is a light cream that offers 10% pure MAP (very high solubilized concentration). Aside from the general benefits of pure Vitamin C, MAP has been shown to offer specific skin brightening benefits, more so than other derivatives of Vitamin C.Apply a small amount of this cream formula to face AM and PM, after application of water-based serums.All skin typesPurifying/ balancingCreamsNo applicator included Shop At House Of Fraser