Science
Mechanism of Action
As a stable precursor to Vitamin C, it neutralizes oxidative stress by scavenging reactive oxygen species and donating electrons to free radicals. It serves as a vital enzymatic cofactor for prolyl and lysyl hydroxylase to stimulate collagen synthesis, inhibits tyrosinase to modulate melanin production, and utilizes its salt structure to act as a humectant for improved moisture retention.
Research
Clinical Evidence
High confidence5%
Key findings
- 01 Comparative research indicates that a 5% concentration provides superior skin-hydrating effects compared to pure L-ascorbic acid, performing similarly to Vitamin E (Tocopherol) over a 6-hour window.
- 02 Studies on stabilized mineral ascorbates within the 1-5% range demonstrate effective collagen synthesis support and antioxidant defense in aqueous formulations.
Transparency
Dusting Analysis
Because it is more stable and less irritating than L-ascorbic acid, it is frequently used in 'Vitamin C' marketing; however, concentrations below 1% are unlikely to provide the significant collagen-boosting or hydrating benefits seen in clinical trials.
The Formula
Formulation
Stability
Highly stable at neutral pH, making it easier to formulate than acidic Vitamin C. It remains sensitive to oxidative catalysts including light, heat, and air.
Synergies
- Vitamin E (Tocopherol)
- Ferulic Acid
- Hyaluronic Acid
Conflicts
- Metal ions (Iron, Zinc)
- Strong oxidizing agents
- High heat processes
- Extremely alkaline environments
Safety
Safety Profile
Recognized as GRAS by the FDA and recently re-confirmed as safe by the CIR Expert Panel in 2024. Its buffered nature makes it significantly better tolerated than pure ascorbic acid.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An excellent, non-irritating Vitamin C derivative for sensitive skin types requiring both antioxidant protection and moisture reinforcement.
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References
Sources