Magnesium Ascorbate
AKA “15431-40-0, Ascorbic acid, magnesium salt, Vitamin C magnesium salt, L(+)-Ascorbic acid magnesium salt, 0N1G678593, DTXSID40165586, Magnesium di L Ascorbate, RefChem:800483, DTXCID7088077”
Antioxidant
Ingredient Facts
Magnesium ascorbate
AKA: 15431-40-0, Ascorbic acid, Magnesium salt, Vitamin C magnesium salt, L(+)-Ascorbic acid magnesium salt, 0N1G678593, DTXSID40165586, Magnesium di L Ascorbate, RefChem:800483, DTXCID7088077
Antioxidant · Antioxidant · EWG: 1
Synthetic
Antioxidant
Skin Conditioner
Vitamin C
Clean
Magnesium di-L-ascorbate
Formula
C12H14MgO12
Mol. Weight
374.54
CAS #
15431-40-0
Form
Powder
See origin →
Functions
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Neutralizes free radicals
Traditional Use
A stabilized form of vitamin C with magnesium created in the late 20th century to overcome vitamin C's instability in skincare formulations; combines magnesium's traditional mineral value with vitamin C's antioxidant properties.
Skin Types
●all-skin-types
Best For
Dullness
Pregnancy & Breastfeeding Safe
Yes
Vitamin C (Ascorbic Acid).
Abdullah M, Jamil RT, Attia FN
, 2026
Vitamin C (Ascorbic Acid).
Abdullah M, Jamil RT, Attia FN
, 2026
Ascorbic Acid (Vitamin C) as a Cosmeceutical to Increase ...
Yong Chool Boo
Antioxidants (Basel, Switzerland), 2022
Ascorbic Acid (Vitamin C) as a Cosmeceutical to Increase ...
Yong Chool Boo
Antioxidants (Basel, Switzerland), 2022
Ascorbic Acid (Vitamin C) as a Cosmeceutical to Increase Dermal Collagen for Skin Antiaging Purposes: Emerging Combination Therapies.
Boo YC
Antioxidants (Basel, Switzerland), 2022
Extended Re-review Summary: Safety Assessment of Ascorbic Acid and Ascorbates as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Final Report on the Safety Assessment of L-Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Magnesium Ascorbyl Phosphate, Sodium Ascorbate, and Sodium Ascorbyl Phosphate as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Safety Assessment of Ethers and Esters of Ascorbic Acid as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Ascorbic Acid (Vitamin C)
European Commission
EU Cosmetic Ingredient Database (CosIng)
Magnesium Ascorbate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Final report of the safety assessment of L-Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Magnesium Ascorbyl Phosphate, Sodium Ascorbate, and
Elmore AR
International journal of toxicology, 2005
Final report of the safety assessment of L-Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Magnesium Ascorbyl Phosphate, Sodium Ascorbate, and
Elmore AR
International journal of toxicology, 2005
Final report of the safety assessment of L-Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Magnesium Ascorbyl Phosphate, Sodium Ascorbate, and
Elmore AR
International journal of toxicology, 2005
Final report of the safety assessment of L-Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Magnesium Ascorbyl Phosphate, Sodium Ascorbate, and
Elmore AR
International journal of toxicology, 2005
Ascorbic Acid (Vitamin C)
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Magnesium Ascorbate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Development of phospholipid nanoparticles encapsulating 3-O-cetyl ascorbic acid and tocopherol acetate (TA-Cassome) for improving their skin accumulat
Fushimi T, Uchino T, Miyazaki Y, Hatta I, Asano M et al.
International journal of pharmaceutics, 2018
Design of Novel Tricaprylin-Incorporated Multi-Layered Liposomal System for Skin Delivery of Ascorbic Acid with Improved Chemical Stability.
Ho MJ, Park DW, Kang MJ
Pharmaceuticals (Basel, Switzerland), 2023
Synthesis of mixed esters of ascorbic acid using methyl esters of palm and soybean oils.
Hsieh HJ, Chen JW, Giridhar R, Wu WT
Preparative biochemistry & biotechnology, 2005
Topical L-ascorbic acid: percutaneous absorption studies.
Pinnell SR, Yang H, Omar M, Monteiro-Riviere N, DeBuys HV et al.
Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.], 2001
Topical L-ascorbic acid: percutaneous absorption studies.
Pinnell SR, Yang H, Omar M, Monteiro-Riviere N, DeBuys HV et al.
Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.], 2001
Topical L-ascorbic acid: percutaneous absorption studies.
Pinnell SR, Yang H, Omar M, Monteiro-Riviere N, DeBuys HV et al.
Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.], 2001
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR