1. Magnesium Ascorbyl Phosphate Overview
Where to buy Magnesium Ascorbyl Phosphate (MAP) Powder with lowering Magnesium L-Ascorbyl-2 Phosphate price and high quality? Where to find good information of Wholesale Magnesium Ascorbyl Phosphate and Purchase Magnesium Ascorbyl Phosphate for sales? As the professional Magnesium Ascorbyl Phosphate manufacturer, BFSTAR is your best choice.
Magnesium Ascorbyl Phosphate (MAP), also known as Magnesium L-Ascorbyl-2 Phosphate, is one of vitamin C derivatives. It is synthesized by esterification of vitamin C. MAP not only has the same biological activities as vitamin C, but is more stable than vitamin C. BFSTAR Magnesium Ascorbyl Phosphate is cosmetic grade raw material with purity up to 98%. It is white to light yellow powder. Due to its lipophilicity, MAP is easily absorbed by skin. It is a water-soluble whitening agent. It is soluble in water and dilute acid, and is insoluble in organic solvents such as ethanol, chloroform or ether.

Magnesium Ascorbyl Phosphate is one of the most stable and most popular vitamin C derivative. It is a tyrosinase inhibitor that reduces melanin intermediate. After entering human body, it can eliminate oxygen free radicals; also it can promote formation of dermal collagen. It has functions of anti-wrinkle and anti-aging. MAP has become a common additive in whitening and freckle cosmetics.
Product Name
CAS Number
INCI Name
Magnesium Ascorbyl Phosphate
113170-55-1
MAGNESIUM ASCORBYL PHOSPHATE
Molecular Weight
Molecular Formula
Molecular Structure
759.22g/mol
C12H12O18P2Mg3·10H2O

Product ID
Specificcation
Minimal Package
Minimal Order Quantity
BFSTAR200101
98%
1KG
1KG
2. Magnesium Ascorbyl Phosphate Source
At present, there are two main methods to synthesize Magnesium Ascorbyl Phosphate at home and abroad: direct acylation and group protection.
Direct acylation
Group protection
Process
Use pyridine, sodium carbonate and magnesium oxide as catalysts. Then synthesize Magnesium Ascorbyl Phosphate.
First convert VC into 5,6-0 isopropyl-l ascorbic acid; then use pyridine and potassium hydroxide as catalysts. After phosphorylation, protective groups are removed by hydrogen type strong acid anion exchange resin column; and then convert into magnesium salt.
Advantage
Simple reaction process; yield is as high as 86.7%.
High purity up to 96%
Disadvantage
Lower purity
Complicated reaction process; yield is lower (55%)
3. Magnesium Ascorbyl Phosphate VS Ascorbic Acid 2-Glucoside
Magnesium Ascorbyl Phosphate
Ascorbic Acid 2-Glucoside
Connection
They are derivatives of vitamin C and are more stable than vitamin C.
Molecular Formula
C12H12O18P2Mg3·10H2O
C12H18O11
Molecular Structure


pH stability
Highly stable at pH of about 7
Stable at a wide pH
Whitening mechanism
MAP enters human body and rapidly decomposes into vitamin C by phosphatase. Thereby MAP inhibits tyrosinase activity.
After entering skin cell body, Ascorbic Acid 2-Glucoside is hydrolyzed by enzymes and converted into vitamin C. Then VC can inhibit activity of tyrosinase and reduce production of melanin.
Application
Whitening and removing freckle, anti-aging cosmetics
4. Magnesium Ascorbyl Phosphate (MAP) Manufacturer Specifications
Product Name
Specification
Magnesium Ascorbyl Phosphate
98%
Items
Specification
Appearance
White or pale yellowish powder
Assay (ANHYDROUS)
≥98%
Physical Characteristics
pH value (3% aqueous solution)
7.0–9.0
Loss on drying
17%-20.0%
Heavy Metals
Heavy metals
≤0.002%
Arsenic
≤0.0003%
Free phosphoric acid
≤1.0 %
Chloride
≤0.5 %
5. Magnesium Ascorbyl Phosphate Manufacturer Flow Chart
6. Magnesium Ascorbyl Phosphate (MAP) Benefits
-
Whitening skin
Magnesium Ascorbyl Phosphate enters human body and rapidly decomposes into vitamin C by phosphatase. Thereby it exerts the unique function of VC. Thus MAP effectively inhibits tyrosinase; and it can block oxidation process from dopa to melanin. Accordingly, MAP has whitening and removing freckle effect. It can treat skin chloasma, pigmentation, aestates, etc.
-
Anti-oxidation
There are two mechanisms for scavenging superoxide anion free radicals by Magnesium Ascorbyl Phosphate: one is the absorption and utilization of superoxide anion free radicals in human body; and the other is to inhibit production of superoxide anion free radicals in the body. Therefore, MAP has anti-oxidation effect. It can promote dermal collagen formation. It owns anti-wrinkle and anti-aging effect.
7. Magnesium Ascorbyl Phosphate Features
As a whitening ingredient of cosmetic, Magnesium Ascorbyl Phosphate has following features:
-
MAP has property of alkali and high temperature resistance. It is not easily oxidized and is stable in light, heat and air. The degree of oxidation in boiling water is only 1/10 of VC.
-
MAP inhibits tyrosinase activity, reduces melanin and exerts whitening effect.
-
MAP can eliminate oxygen free radicals after entering human body, so as to remove wrinkle, and function as anti-ager.
-
Stable, not easy to change color.
-
Non-toxic, no irritation.
8. Magnesium Ascorbyl Phosphate Application and Reference Dosage
Magnesium Ascorbyl Phosphate is widely used in whitening, anti-wrinkle, anti-aging cosmetics, such as eye cream, essence, emulsion, toner, cream, sunscreen, foundation; but also it can be made into detergent, such as eye cleaner, shower gel and toothpaste.
Product
Reference Dosage
Magnesium Ascorbyl Phosphate 98%
≤3.0%
Attention:
-
MAP is stable in neutral pH, and has no irritation to skin.
-
It is usually used in combination with vitamin E for synergistic effect.
-
It is most stable in solution and emulsion.
-
Excessive use of MAP can interfere with normal enzyme conversion of tyrosine into melanin in skin, which may cause adverse reactions to skin.
Magnesium Ascorbyl Phosphate application cases in major cosmetic brands in the world
Country
Brand
Product
Japan
Quality First
All in One Sheet Mask (Pink)Quality First All in One Sheet Mask
SHISEIDO
Bio-Performance Super Corrective Eye CreamBenefiance Nutriperfect Pro-Fortifying Softener
Dr.Ci.Labo
VC100 Toner
O2 Herbal Gel Oxygen Charge
ELIXIR
Superieur Day Care Revolution W Ii
TUNEMAKERS
Ceramide Toner
Koh Gen Do
Aqua Foundation
CLE DE PEAU BEAUTE
Refreshing Nourishing Emulsion L
HABA
Mineral Essence Liquid Foundation SPF20
DHC
Medicated Q Lotion
Vitamin C Essence
USA
CLINIQUE
Moisture Surge Extended Thirst Relief
Even Better Eyes Dark Circle Corrector
City Block Sheer oil-free daily face protector SPF25
Estee Lauder
Re-Nutriv Ultra Radiance Makeup SPF 15/PA+++ Cool Porcelain
Idealist Pore Minimizing Skin Refinisher
GIORGIO ARMANI
Designer Cream Foundation 5.5 SPF 20
Lamer
The Revitalizing Hydrating Serum
The Eye Balm Intense
OLAY
Eye Transforming Cream
Bare Minerals
Bareskin Pure Brightening Serum Foundation
Australia
Aesop
Oil Free Facial Hydrating Serum
B Triple C Facial Balancing Gel
Parsley Seed Antioxidant Eye Serum
UK
Zelens
Age Control Foudation
Korea
The SAEM
Cover Perfection Tip Concealer 01
France
VICHY
Liftactiv Eyes Supreme
9. Magnesium Ascorbyl Phosphate Reference Formula
Anti-aging essence
Ingredient
Content (%)
Ingredient
Content (%)
Magnesium Ascorbyl Phosphate
2
Human Placental Extract
10
Acetyl Hexapeptide
2
Palmitoyl Oligopeptide
2
Palmitoyl Tetrapeptide
2
Tocopherol
2
Eryngium Maritimum Extract
1
Sodium Hyaluronate
2
Xanthan Gum
4
Diazolidinyl Urea
0.3
Allantoin
0.2
EDTA Tetrasodium
0.1
Sodium Pyrosulfite
0.03
Butanediol
11
Deionized Water
Add To 100
Sun screen
Ingredient
Content (%)
Ingredient
Content (%)
Magnesium Ascorbyl Phosphate
0.5
Titanium Dioxide
10
Cyclic Polydimethylsiloxane
5
Ceric Dioxide
2
C16 Alkyl Polydimethylsiloxane
8
Vitamin C
3
Ethylhexyl Stearate
5
Hydrogenated Castor Oil
0.5
Ceresine Wax
2
Vitamin E
3
Arbutin Lipid Nanoemulsion
15
Polyvinylpyrrolidone
1
Water
Add To 100
Whitening fluid
Ingredient
Content (%)
Ingredient
Content (%)
Magnesium Ascorbyl Phosphate
1
Gentian Root Extract
5
Rice Bran Extract
10
Nicotinamide
5
Lotus Seed Fermentation Broth
10
Deionized Water
Add To 100
Make-up foundation
Ingredient
Content (%)
Ingredient
Content (%)
Magnesium Ascorbyl Phosphate
0.8
Hydrolyzed Corn Protein
0.05
Hydrolyzed Soy Protein
0.05
Hydrolyzed Rice Protein
0.05
Artemia Extract
0.01
PEG-10 Dimethyl Silicone Oil Copolymer
2
Diphenyl Methylsilane Oxyphenyl Polytrimethylsiloxane
2.5
Cyclopentasiloxane
15
Polydimethylsiloxane/Vinyl Dimethylsiloxane Crosslinked Polymer
2
Macadamia Oil
1
Diisostearylmalate
2.5
Talc
5
Tio2
5.5
Red Ferric Oxide
0.35
Yellow Ferric Oxide
0.3
Black Fefdc Oxide
0.05
Caprylyl Glycol
0.20
Phenoxyethanol
0.4
Glycerin
5.0
Yeast Extract
0.5
Dipotassium Glycyrrhizinate
0.05
1,3-Butanedio
3
EDTA
0.05
Tremella Fuciformis Extract
0.03
Deionized Water
54.57
10. Magnesium Ascorbyl Phosphate (MAP) Safety
-
Japan and Taiwan limit the concentration of Magnesium Ascorbyl Phosphate to 3%;
-
Magnesium Ascorbyl Phosphate has been listed on The Catalog of the International Cosmetics Raw Material Standard Chinese Name published by China Food and Drug Administration in 2010.
11. Packing and Storage
Package: Packed in 25kg paper drums with two plastic bags inside.
Storage: Stored in a cool dry place and away from direct sunlight and oxidizing agents.
1. Magnesium Ascorbyl Phosphate Overview
Where to buy Magnesium Ascorbyl Phosphate (MAP) Powder with lowering Magnesium L-Ascorbyl-2 Phosphate price and high quality? Where to find good information of Wholesale Magnesium Ascorbyl Phosphate and Purchase Magnesium Ascorbyl Phosphate for sales? As the professional Magnesium Ascorbyl Phosphate manufacturer, BFSTAR is your best choice.
Magnesium Ascorbyl Phosphate (MAP), also known as Magnesium L-Ascorbyl-2 Phosphate, is one of vitamin C derivatives. It is synthesized by esterification of vitamin C. MAP not only has the same biological activities as vitamin C, but is more stable than vitamin C. BFSTAR Magnesium Ascorbyl Phosphate is cosmetic grade raw material with purity up to 98%. It is white to light yellow powder. Due to its lipophilicity, MAP is easily absorbed by skin. It is a water-soluble whitening agent. It is soluble in water and dilute acid, and is insoluble in organic solvents such as ethanol, chloroform or ether.


2. Magnesium Ascorbyl Phosphate Source
At present, there are two main methods to synthesize Magnesium Ascorbyl Phosphate at home and abroad: direct acylation and group protection.
Direct acylation | Group protection | |
Process | Use pyridine, sodium carbonate and magnesium oxide as catalysts. Then synthesize Magnesium Ascorbyl Phosphate. | First convert VC into 5,6-0 isopropyl-l ascorbic acid; then use pyridine and potassium hydroxide as catalysts. After phosphorylation, protective groups are removed by hydrogen type strong acid anion exchange resin column; and then convert into magnesium salt. |
Advantage | Simple reaction process; yield is as high as 86.7%. | High purity up to 96% |
Disadvantage | Lower purity | Complicated reaction process; yield is lower (55%) |
3. Magnesium Ascorbyl Phosphate VS Ascorbic Acid 2-Glucoside
Magnesium Ascorbyl Phosphate | Ascorbic Acid 2-Glucoside | |
Connection | They are derivatives of vitamin C and are more stable than vitamin C. | |
Molecular Formula | C12H12O18P2Mg3·10H2O | C12H18O11 |
Molecular Structure |
![]() |
![]() |
pH stability | Highly stable at pH of about 7 | Stable at a wide pH |
Whitening mechanism | MAP enters human body and rapidly decomposes into vitamin C by phosphatase. Thereby MAP inhibits tyrosinase activity. | After entering skin cell body, Ascorbic Acid 2-Glucoside is hydrolyzed by enzymes and converted into vitamin C. Then VC can inhibit activity of tyrosinase and reduce production of melanin. |
Application | Whitening and removing freckle, anti-aging cosmetics |
4. Magnesium Ascorbyl Phosphate (MAP) Manufacturer Specifications
Product Name | Specification |
Magnesium Ascorbyl Phosphate | 98% |
Items | Specification |
Appearance | White or pale yellowish powder |
Assay (ANHYDROUS) | ≥98% |
Physical Characteristics | |
pH value (3% aqueous solution) | 7.0–9.0 |
Loss on drying | 17%-20.0% |
Heavy Metals | |
Heavy metals | ≤0.002% |
Arsenic | ≤0.0003% |
Free phosphoric acid | ≤1.0 % |
Chloride | ≤0.5 % |
5. Magnesium Ascorbyl Phosphate Manufacturer Flow Chart
6. Magnesium Ascorbyl Phosphate (MAP) Benefits
7. Magnesium Ascorbyl Phosphate Features
As a whitening ingredient of cosmetic, Magnesium Ascorbyl Phosphate has following features:
- MAP has property of alkali and high temperature resistance. It is not easily oxidized and is stable in light, heat and air. The degree of oxidation in boiling water is only 1/10 of VC.
- MAP inhibits tyrosinase activity, reduces melanin and exerts whitening effect.
- MAP can eliminate oxygen free radicals after entering human body, so as to remove wrinkle, and function as anti-ager.
- Stable, not easy to change color.
- Non-toxic, no irritation.
8. Magnesium Ascorbyl Phosphate Application and Reference Dosage
Magnesium Ascorbyl Phosphate is widely used in whitening, anti-wrinkle, anti-aging cosmetics, such as eye cream, essence, emulsion, toner, cream, sunscreen, foundation; but also it can be made into detergent, such as eye cleaner, shower gel and toothpaste.
Product | Reference Dosage |
Magnesium Ascorbyl Phosphate 98% | ≤3.0% |
Attention:
- MAP is stable in neutral pH, and has no irritation to skin.
- It is usually used in combination with vitamin E for synergistic effect.
- It is most stable in solution and emulsion.
- Excessive use of MAP can interfere with normal enzyme conversion of tyrosine into melanin in skin, which may cause adverse reactions to skin.
Magnesium Ascorbyl Phosphate application cases in major cosmetic brands in the world
Country | Brand | Product |
Japan | Quality First | All in One Sheet Mask (Pink)Quality First All in One Sheet Mask |
SHISEIDO | Bio-Performance Super Corrective Eye CreamBenefiance Nutriperfect Pro-Fortifying Softener | |
Dr.Ci.Labo |
VC100 Toner
O2 Herbal Gel Oxygen Charge |
|
ELIXIR | Superieur Day Care Revolution W Ii | |
TUNEMAKERS | Ceramide Toner | |
Koh Gen Do | Aqua Foundation | |
CLE DE PEAU BEAUTE | Refreshing Nourishing Emulsion L | |
HABA | Mineral Essence Liquid Foundation SPF20 | |
DHC |
Medicated Q Lotion
Vitamin C Essence |
|
USA | CLINIQUE |
Moisture Surge Extended Thirst Relief
Even Better Eyes Dark Circle Corrector City Block Sheer oil-free daily face protector SPF25 |
Estee Lauder |
Re-Nutriv Ultra Radiance Makeup SPF 15/PA+++ Cool Porcelain
Idealist Pore Minimizing Skin Refinisher |
|
GIORGIO ARMANI | Designer Cream Foundation 5.5 SPF 20 | |
Lamer |
The Revitalizing Hydrating Serum
The Eye Balm Intense |
|
OLAY | Eye Transforming Cream | |
Bare Minerals | Bareskin Pure Brightening Serum Foundation | |
Australia | Aesop |
Oil Free Facial Hydrating Serum
B Triple C Facial Balancing Gel Parsley Seed Antioxidant Eye Serum |
UK | Zelens | Age Control Foudation |
Korea | The SAEM | Cover Perfection Tip Concealer 01 |
France | VICHY | Liftactiv Eyes Supreme |
9. Magnesium Ascorbyl Phosphate Reference Formula
Anti-aging essence
Ingredient | Content (%) | Ingredient | Content (%) |
Magnesium Ascorbyl Phosphate | 2 | Human Placental Extract | 10 |
Acetyl Hexapeptide | 2 | Palmitoyl Oligopeptide | 2 |
Palmitoyl Tetrapeptide | 2 | Tocopherol | 2 |
Eryngium Maritimum Extract | 1 | Sodium Hyaluronate | 2 |
Xanthan Gum | 4 | Diazolidinyl Urea | 0.3 |
Allantoin | 0.2 | EDTA Tetrasodium | 0.1 |
Sodium Pyrosulfite | 0.03 | Butanediol | 11 |
Deionized Water | Add To 100 |
Sun screen
Ingredient | Content (%) | Ingredient | Content (%) |
Magnesium Ascorbyl Phosphate | 0.5 | Titanium Dioxide | 10 |
Cyclic Polydimethylsiloxane | 5 | Ceric Dioxide | 2 |
C16 Alkyl Polydimethylsiloxane | 8 | Vitamin C | 3 |
Ethylhexyl Stearate | 5 | Hydrogenated Castor Oil | 0.5 |
Ceresine Wax | 2 | Vitamin E | 3 |
Arbutin Lipid Nanoemulsion | 15 | Polyvinylpyrrolidone | 1 |
Water | Add To 100 |
Whitening fluid
Ingredient | Content (%) | Ingredient | Content (%) |
Magnesium Ascorbyl Phosphate | 1 | Gentian Root Extract | 5 |
Rice Bran Extract | 10 | Nicotinamide | 5 |
Lotus Seed Fermentation Broth | 10 | Deionized Water | Add To 100 |
Make-up foundation
Ingredient | Content (%) | Ingredient | Content (%) |
Magnesium Ascorbyl Phosphate | 0.8 | Hydrolyzed Corn Protein | 0.05 |
Hydrolyzed Soy Protein | 0.05 | Hydrolyzed Rice Protein | 0.05 |
Artemia Extract | 0.01 | PEG-10 Dimethyl Silicone Oil Copolymer | 2 |
Diphenyl Methylsilane Oxyphenyl Polytrimethylsiloxane | 2.5 | Cyclopentasiloxane | 15 |
Polydimethylsiloxane/Vinyl Dimethylsiloxane Crosslinked Polymer | 2 | Macadamia Oil | 1 |
Diisostearylmalate | 2.5 | Talc | 5 |
Tio2 | 5.5 | Red Ferric Oxide | 0.35 |
Yellow Ferric Oxide | 0.3 | Black Fefdc Oxide | 0.05 |
Caprylyl Glycol | 0.20 | Phenoxyethanol | 0.4 |
Glycerin | 5.0 | Yeast Extract | 0.5 |
Dipotassium Glycyrrhizinate | 0.05 | 1,3-Butanedio | 3 |
EDTA | 0.05 | Tremella Fuciformis Extract | 0.03 |
Deionized Water | 54.57 |
10. Magnesium Ascorbyl Phosphate (MAP) Safety
- Japan and Taiwan limit the concentration of Magnesium Ascorbyl Phosphate to 3%;
- Magnesium Ascorbyl Phosphate has been listed on The Catalog of the International Cosmetics Raw Material Standard Chinese Name published by China Food and Drug Administration in 2010.
11. Packing and Storage
Package: Packed in 25kg paper drums with two plastic bags inside.
Storage: Stored in a cool dry place and away from direct sunlight and oxidizing agents.