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SODIUM ASCORBATE.

Valuable CAS 134-03-2 / ANTIOXIDANT

Sodium Ascorbate is a buffered salt of L-Ascorbic Acid, engineered for superior stability and reduced irritation in topical skincare. It functions as a powerful antioxidant, safeguarding the skin from environmental damage, while actively supporting the production of healthy collagen for improved skin structure and a radiant appearance.

Summary

Antioxidant Skin brightening Collagen boosting

Science

Mechanism of Action

As an antioxidant, Sodium Ascorbate neutralizes harmful free radicals, effectively mitigating oxidative stress that contributes to premature aging and cellular damage. Concurrently, it plays a crucial role in collagen synthesis, a fundamental process for maintaining skin elasticity, firmness, and overall health.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 High megadoses of intravenous sodium ascorbate (3.0 g/kg) were effective in preclinical ovine Gram-negative sepsis models, enabling vasopressor withdrawal and improving renal function. Daily intravenous doses of 10 g over 10 days also showed efficacy in improving quality of life for cancer patients.

Transparency

Dusting Analysis

Not commonly dusted

No data available suggests Sodium Ascorbate is commonly 'dusted' or used deceptively in formulations. Its known efficacy is tied to its properties as a vitamin C derivative.

The Formula

Formulation

Solubility
Water
Optimal pH ≤6
0 7 14

Stability

Sodium Ascorbate exhibits greater stability against oxidation and degradation from light, air, and water compared to L-Ascorbic Acid. However, its aqueous solutions are susceptible to rapid oxidation in air when the pH exceeds 6.0. For optimal shelf life, the bulk material requires storage in a well-sealed, non-metallic container, protected from light, in a cool, dry environment.

Conflicts

  • strong oxidizing agents
  • heavy metal ions (especially copper and iron)
  • methenamine
  • sodium nitrite
  • sodium salicylate
  • theobromine salicylate
  • stainless steel filters (for aqueous solutions)

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel deems Sodium Ascorbate safe for use in cosmetics. The FDA classifies it as Generally Recognized As Safe (GRAS) for food use, and the European Food Safety Authority (EFSA) confirms no safety concerns as a food additive (E 301). It was ruled Category II for OTC drug products, indicating conditions not generally recognized as safe or effective, which differentiates its regulatory status across applications.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

Sodium Ascorbate is a valuable and stable vitamin C derivative, offering antioxidant defense, collagen support, and brightening benefits with low irritancy, making it suitable for all skin types, including sensitive skin.

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