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Magnesium Ascorbyl Phosphate

Product Name Magnesium Ascorbyl Phosphate
Other Names MAP, Magnesium Ascorbyl-2-Phosphate
CAS Number 113170-55-1
Molecular Formula C6H7MgO9P
Molecular Weight Approximately 278.38 g/mol
Applications Personal Care, Dietary Supplements, Functional Foods, Animal Nutrition, etc.
Package 1kg,5kg/bag, 25kg/drum


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Magnesium Ascorbyl Phosphate

What Is Magnesium Ascorbyl Phosphate?

Magnesium ascorbyl phosphate (MAP) is a stable derivative of vitamin C often found in skincare products. Unlike pure ascorbic acid, it’s prized for its ability to penetrate the skin effectively and remain stable. MAP is an antioxidant, protecting the skin against harm from free radicals.

Additionally, it promotes collagen synthesis, enhances skin texture, and diminishes the presence of dark spots and hyperpigmentation. Additionally, it possesses anti-inflammatory properties, making it beneficial for soothing irritated skin. MAP is a popular ingredient in skincare formulations due to its stability and diverse skin benefits.

Magnesium Ascorbyl Phosphate VS Ascorbic Acid For Skin

Magnesium Ascorbyl Phosphate and Ascorbic Acid are both forms of Vitamin C. They have different properties and uses in skin care and nutritional supplementation.

  • Stability

Magnesium Ascorbyl Phosphate is a more stable form of Vitamin C that does not require a low pH to remain stable. VC Ascorbic Acid is a water-soluble Vitamin C. It is sensitive to air, light, and heat and easily oxidizes.

  • Skin Penetration

Magnesium Ascorbyl Phosphate needs to be converted to Ascorbic Acid in the skin to be effective. Therefore, it may not be as absorbent as Ascorbic Acid. Ascorbic Acid requires a low pH to penetrate the skin optimally.

  • Irritation

Magnesium Ascorbyl Phosphate is generally gentler on the skin and suitable for sensitive skin. Ascorbic Acid may cause skin irritation due to its low pH formula, especially for dry and sensitive skin.

  • Efficacy

While Magnesium Ascorbyl Phosphate may not be as potent as pure Ascorbic Acid, it is often paired with other antioxidants and whitening ingredients to enhance its effects.

Ascorbic Acid is a powerful antioxidant. It has various skin benefits, including promoting collagen synthesis and reducing pigmentation.

  • Absorption Rate

Ascorbic Acid is widely considered one of the most effective forms of vitamin C, although its stability and irritation are its disadvantages.

  • Product Formulation

Due to its stability and mildness, Magnesium Ascorbyl Phosphate is suitable for various skin care product formulations. Ascorbic Acid requires careful formulation and packaging to maintain its stability, such as using opaque and sealed containers.

  • Research Support

Research shows that at least 10% Magnesium Ascorbyl Phosphate concentration is required to achieve whitening effects. Much research has been done to support the benefits of ascorbic acid for skin health and anti-aging.

Magnesium Ascorbyl Phosphate VS Ascorbyl Palmitate

Ascorbyl Palmitate is also a vitamin C derivative. It is an oil-soluble form of vitamin C. It is more stable than Ascorbic Acid. However, it may also become relatively unstable when exposed to oxygen, UV rays, light, and excessive humidity.

Ascorbyl palmitate is an oil-soluble derivative that may penetrate the skin better. However, like magnesium ascorbyl phosphate, it also needs to be converted to ascorbic acid to provide the core vitamin C benefits. However, it is considered less efficient in converting to ascorbic acid and may take longer to neutralize free radicals effectively.

Ascorbyl palmitate is also considered gentler on the skin than ascorbic acid, but it may not be as stable as magnesium ascorbyl phosphate.

Magnesium Ascorbyl Phosphate helps increase collagen production, fights free radicals, reduces age spots and pigmentation, and helps maintain skin hydration. VC Ascorbyl Palmitate promotes collagen production, reduces the appearance of age spots, and improves skin texture.

Specification Sheet Reference

EC Number281-602-2
AppearanceWhite to off-white powder
Purity10%, etc.
CertificationsVary by supplier
Test MethodsAnalytical techniques such as HPLC (High-Performance Liquid Chromatography) for purity assessment
MOQ (minimum order quantity)1kg
SampleAvailable (10-20g/bag)
OEM ServiceAvailable, such as capsules, tablets, pills, etc.
ODM ServiceAvailable
Private LabelAvailable
Contract ManufacturingAvailable

General Magnesium Ascorbyl Phosphate Powder Production Process

  1. L-ascorbic acid and magnesium salts are sourced.
  2. L-ascorbic acid reacts with magnesium salts in controlled conditions.
  3. The crude product is purified to remove impurities.
  4. The purified product is dried to obtain a powder form.
  5. Stringent quality checks ensure product specifications are met.
  6. The final powder is packaged and stored under controlled conditions.
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Magnesium Ascorbyl Phosphate: Benefits, Uses, And More

As a vitamin C derivative, this ingredient has some benefits.

Antioxidant effect. As a stable form of vitamin C, it has antioxidant properties. It neutralizes free radicals and reduce oxidative stress.

Promote collagen synthesis. Magnesium Ascorbyl Phosphate can increase collagen production. It can reduce wrinkles and improve skin elasticity.

Whitening effect. It reduces melanin production by inhibiting tyrosinase activity. It has whitening and spot-lightening effects.

Anti-aging function. This ingredient can eliminate oxygen-free radicals after entering the body and has anti-aging effects. It can slow down the skin aging process.

Synergistic effect. Magnesium Ascorbyl Phosphate has a synergistic effect with vitamin E. The combination of the two can enhance the antioxidant effect.

Wound healing. Studies have shown that it can stabilize collagen, increase the rate of collagen fiber formation, and help wound healing.

Bone repair potential. It shows the potential to repair bones by promoting bone formation.

Stability. Compared with other forms of vitamin C, Magnesium Ascorbyl Phosphate has better stability under high temperatures and light. It is suitable for the nutritional fortification of high-temperature processed foods.

Safety. It showed good safety in toxicological evaluation, and no mutagenic effects were observed.

These benefits make it a popular ingredient in skin care products and nutritional supplements.

Application Fields

  • Cosmetic industry. As a vitamin C derivative, it is used in cosmetics as a skin lightener and whitening agent because of its freckle-removing and whitening effects.
  • Dietary supplements. It helps to enhance the body’s antioxidant capacity and promote collagen synthesis.
  • Food additives. Due to its stability at high temperatures, Magnesium Ascorbyl Phosphate is suitable for the nutritional fortification of high-temperature processed foods.
  • Pharmaceutical field. It may be used to develop drugs with antioxidant, anti-inflammatory, and other therapeutic properties.
  • Scientific research. It is used in research to explore the multiple biological effects of vitamin C, phosphorus, and magnesium.
  • Feed additives. It helps to improve animal health and production performance.

FDA-Approved: Yes or No?

It is not specifically FDA-approved for use as a standalone chemical ingredient in cosmetic products. Instead, Magnesium Ascorbyl Phosphate falls under the category of substances generally recognized as safe (GRAS) when used by good manufacturing practices.

Cosmetic products containing MAP are subject to FDA regulations, ensuring their safety and efficacy for consumer use. While MAP has not undergone a specific approval process by the FDA, it is widely used in skincare formulations.

It is considered safe for topical application when formulated within regulatory guidelines.

Buy Vitamin C Magnesium Ascorbyl Phosphate Bulk Powder From Top Supplier

Manufacturers seeking high-quality Magnesium Ascorbyl Phosphate (MAP) powder can find it on Nutri Avenue. Our powder originates from trustworthy suppliers and is subjected to rigorous quality assurance protocols to guarantee purity and uniformity.

Vitamin C Magnesium Ascorbyl Phosphate is an ideal ingredient for skincare formulations with its antioxidant properties, skin-brightening effects, and collagen-boosting benefits.


Yes, Magnesium Ascorbyl-2-Phosphate can help brighten the skin and even tone by inhibiting melanin production, effectively addressing dark spots and hyperpigmentation.

It is a stable form of Vitamin C, delivering antioxidant advantages, stimulating collagen synthesis, and displaying reduced susceptibility to oxidation. These qualities render it an efficient component in skincare products.

No. Magnesium Ascorbyl Phosphate is a Vitamin C derivative, whereas L-ascorbic acid is pure.

While both offer similar skincare benefits, MAP is more stable and less irritating, making it suitable for sensitive skin.

Magnesium Ascorbyl Phosphate (MAP) is water-soluble, allowing easy incorporation into skincare products such as serums, lotions, and creams. Its solubility contributes to its efficacy in delivering Vitamin C benefits to the skin.

These two ingredients can be an effective approach in skincare for several reasons.

  • Enhanced Stability: MAP is a stable form of vitamin C, which can help stabilize the retinol in the mixture, as retinol is known to degrade over time, especially when exposed to air and light.
  • Antioxidant Synergy: Both MAP and retinol have antioxidant properties. MAP can neutralize free radicals, and when used together with retinol, they may provide enhanced protection against oxidative stress.
  • Improved Skin Texture and Tone: Retinol is known for its ability to improve skin texture, reduce the appearance of fine lines and wrinkles, and even out skin tone. MAP can support these effects by promoting collagen synthesis and reducing hyperpigmentation.
  • Reduced Irritation: Retinol can irritate some individuals, especially when used at higher concentrations. MAP’s calming and hydrating properties may help reduce the potential for retinol-induced irritation.
  • Brightening Effect: MAP has skin-brightening properties due to its ability to inhibit melanin production. Combined with retinol, which can improve skin clarity, the mixture may provide a more even and radiant complexion.
  • Collagen Production: Both MAP and retinol can stimulate collagen production, which is beneficial for anti-aging skincare routines.
  • Hydration: MAP may help to maintain skin hydration, which can be important when using retinol, as retinol can sometimes cause dryness.
  • Pharmacological Benefits: MAP has been studied for its potential in bone formation and wound healing. It may have additional benefits when used with retinol, which is used for its skin-restorative properties.

When mixing MAP with retinol, it’s important to consider the pH levels, as both ingredients have specific pH ranges where they are most effective. Additionally, the mixture should be prepared to minimize exposure to air and light to maintain the stability of both ingredients. As with any new skincare product or combination, performing a patch test first is recommended to ensure there is no adverse reaction.

Amounts below 2% down to 0.1% still deliver antioxidant benefits. It works best at pH levels between 5-6.

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