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Magnesium Ascorbyl Phosphate

Main Uses Whitening and anti-Freckle
CAS Number: 113170-55-1
Molecular Formula: C6H7MgO9P
Molecular Weight: 278.39
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Synonyms: Ascorbic Acid 2-Phosphate Magnesium Ester, Magnesium Ascorbyl Phosphate,MAP;
Production Standard: Enterprise Standard
Packing Size: 25kg /Drum, 1kg /Bags, 100g/bag

Magnesium Ascorbyl Phosphate


Product information

Appearance and Properties:

White or yellowish powder, odorless, tasteless, hygroscopic and soluble in water.

Usage and Dosage:

mainly used in cosmetics as brightening agents and whitening agents.

Technical Specifications:




White or yellowish powder

Assay (HPLC) 

≥95 %

Loss on drying 

≤20.0 %

Heavy metals (Pb)




pH value (3% aqueous solution):

7.0 - 8.5

Color of solution (APHA):


Free ascorbic acid

0.50 %

Specific rotation

21.5 – 26.5

 Free phosphoric acid

≤ 1.0 %


≤ 0.35 %

Total bacterial count

≤ 100 cfu/g


Description and Application:

After the Magnesium Ascorbyl Phosphate is absorbed by the skin, It is rapidly hydrolyzed by phosphatase and get the vitamin C. Therefore, it has all the effects of vitamin C, and at the same time overcomes the shortcomings of vitamin C, such as avoid light, heat and metal ions. As a water-soluble cosmetic whitening additive, Magnesium Ascorbyl Phosphate can effectively resist UV attack, capture oxygen free radicals, promote collagen production, prevent pigmentation, dilute various skin spots, and make skin moist, white and smooth. Magnesium Ascorbyl Phosphate has a synergistic effect with vitamin E.

Magnesium Ascorbyl Phosphate(MAP) is an internationally recognized water-soluble high-efficiency freckle whitening agent, which can inhibit tyrosinase activity, reduce melanin, and has a whitening effect; it can eliminate oxygen free radicals after entering the body, thereby having wrinkle-reducing and anti-aging functions;

1. A cosmetic additive which is a water soluble whitening agent.
2. Food additives, nutritional additives can be widely used in various types of fortified foods, nutraceuticals and beverages.
3. Food preservative, which has excellent anti-oxidation and anti-oxidation effect, can effectively extend the storage period of food, and can be used as a color preservative for various canned, bagged foods and meat products.

More Information:

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Biotain Pharma Co., Limited is a professional and reliable manufacturer and supplier of Cosmetic Ingredients . Our products have sold to Australia, European and American countries. Like the skin care Ingredients Ascorbyl Glucoside , Magnesium Ascorbyl Phosphate and Sodium Ascorbyl Phosphate , our Cosmetic Ingredients comply with the USP/EP/BP/JP standard specification.

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