Magnesium Ascorbate
AKA: 15431-40-0, Ascorbic acid, Magnesium salt, Vitamin C magnesium salt, L(+)-Ascorbic acid magnesium salt, Magnesium di L Ascorbate
Synthetic
Antioxidant
Skin Conditioner
Vitamin C
Clean
Magnesium di-L-ascorbate
Formula
C12H14MgO12
Mol. Weight
374.54
CAS #
15431-40-0
Form
Powder
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
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR