Excellent Antioxidant

Magnesium Ascorbyl Phosphate

INCI: MAGNESIUM ASCORBYL PHOSPHATE

CAS Number
114040-31-2
Function
Stable vitamin C derivative; antioxidant; skin-brightening; collagen-synthesis stimulant; barrier-supporting through magnesium cofactor activity; anti-inflammatory; tyrosinase inhibitor
Safety Rating
EXCELLENT

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
EU Max Conc. 1โ€“5%
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes No FDA restriction; marketed as stable vitamin C derivative for brightening and anti-aging. CIR has not identified safety concerns at cosmetic concentrations.

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

CIR safe as used (2005 L-AA group). Phosphate ester resists oxidation up to pH 7. Hydrophilic. EU unrestricted. Korea MFDS approved functional cosmetic whitening active. Japan quasi-drug whitening. Stable at neutral pH. Pro-oxidant risk with metal ions (same as L-AA).

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Concern Level: None

Regulatory Flags

cir-safe-as-used-2005 eu-unrestricted stable-neutral-ph phosphate-ester korea-functional-cosmetic-whitening japan-quasi-drug-whitening pro-oxidant-risk-metal-ions

Frequently Asked Questions

Is Magnesium Ascorbyl Phosphate safe in cosmetics?

CIR safe as used (2005 L-AA group). Phosphate ester resists oxidation up to pH 7. Hydrophilic. EU unrestricted. Korea MFDS approved functional cosmetic whitening active. Japan quasi-drug whitening. Stable at neutral pH. Pro-oxidant risk with metal ions (same as L-AA). The EU classifies Magnesium Ascorbyl Phosphate as "permitted". Safety rating: EXCELLENT.

Is Magnesium Ascorbyl Phosphate allowed in the EU?

Magnesium Ascorbyl Phosphate EU regulatory status: permitted. Maximum allowed concentration: 1โ€“5%. This is based on EU Regulation 1223/2009 and its amendments.

What does Magnesium Ascorbyl Phosphate do in cosmetics?

Magnesium Ascorbyl Phosphate functions as: Stable vitamin C derivative; antioxidant; skin-brightening; collagen-synthesis stimulant; barrier-supporting through magnesium cofactor activity; anti-inflammatory; tyrosinase inhibitor. It is classified as a Antioxidant in our database. CAS number: 114040-31-2.

What is the Margin of Safety for Magnesium Ascorbyl Phosphate?

adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

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