Magnesium ascorbyl phosphate

Magnesium ascorbyl phosphate (CAS 113170-55-1), commonly abbreviated as MAP, is a water-soluble, stable derivative of vitamin C used in cosmetic formulations. Unlike pure ascorbic acid, MAP resists oxidative degradation. This stability makes it a reliable active ingredient for formulators requiring consistent performance across shelf life. Trade names including Phospitan C, Ascorbyl PM, and ORISTAR MAP are used interchangeably in markets.

MAP is the primary vitamin C source in skin-brightening serums, creams, and emulsions where stability and whitening efficacy are the formulation targets. It is incorporated into anti-aging moisturizers to support collagen synthesis. The ingredient helps reduce the appearance of hyperpigmentation in various skincare applications. Suncare and post-sun formulations use MAP as an antioxidant booster alongside UV filters to address oxidative stress from UV exposure.

It also appears in toners and essence products common in Asia-Pacific cosmetic lines, where high-stability vitamin C actives command a premium. Magnesium ascorbyl phosphate is supplied as a white to off-white powder. It is available in cosmetic-grade specification, the standard for personal care applications, with purity typically stated at 95% or higher. Bulk supply is offered in kilogram and metric ton quantities.

These supply options suit both development-scale and commercial production needs for global manufacturers. The material ensures long-term efficacy in diverse topical delivery systems and complex cosmetic bases.