Cosmetic Active Ingredients

Sodium L-Ascorbyl-2-Phosphate

  • CAS No.66170-10-3
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

Sodium L-Ascorbyl-2-Phosphate is a stable, water-soluble Vitamin C derivative designed for advanced cosmetic formulations. It offers superior whitening and anti-aging benefits with high skin penetration.

Request a Quote & Full COA

Product Technical Details

Product Overview

Sodium L-Ascorbyl-2-Phosphate, commonly known as SAP, represents a premier generation of stable Vitamin C derivatives engineered for high-performance cosmetic applications. Unlike pure L-Ascorbic Acid, which is prone to rapid oxidation and instability in aqueous formulations, this phosphorylated derivative offers exceptional chemical stability while maintaining potent biological activity. Our manufacturing process ensures high purity levels, making it an ideal choice for formulators seeking reliable efficacy in skincare products.

This water-soluble compound is specifically designed to penetrate the stratum corneum effectively. Once absorbed into the skin, enzymatic phosphatases convert SAP into active L-Ascorbic Acid, delivering the full spectrum of Vitamin C benefits directly to the target tissues. This mechanism ensures sustained release and prolonged activity, providing long-term improvements in skin tone and texture without the irritation often associated with acidic Vitamin C forms.

Technical Specifications

ParameterSpecification
CAS Number66170-10-3
Molecular FormulaC6H6Na3O9P
Molecular Weight322.049
AppearanceWhite or off-white crystalline powder
Assay≥95.0%
Heavy Metals≤10ppm
Arsenic (As)≤2ppm
Melting Point84 °C

Mechanism and Key Benefits

The efficacy of Sodium L-Ascorbyl-2-Phosphate lies in its dual action as both an antioxidant and a tyrosinase inhibitor. By interfering with the enzymatic process of melanin production, it effectively reduces hyperpigmentation and promotes a more even skin tone. Furthermore, its antioxidant capacity neutralizes free radicals generated by UV exposure and environmental stressors, thereby preventing premature aging.

  • Enhanced Stability: Resists oxidation better than pure ascorbic acid, ensuring longer shelf life for formulations.
  • Skin Brightening: Inhibits tyrosinase activity to reduce melanin synthesis and fade existing spots.
  • Collagen Synthesis: Promotes fibroblast activity to improve skin elasticity and reduce fine wrinkles.
  • Safety Profile: Non-irritating and suitable for sensitive skin types compared to acidic alternatives.
  • Synergistic Effects: Works effectively in combination with Vitamin E and other antioxidants for amplified results.

Industrial Applications

This ingredient is widely utilized in the development of modern functional cosmetics, including whitening serums, anti-aging creams, lotions, and essences. Its water solubility allows for easy incorporation into aqueous phases without requiring complex solubilization techniques. Formulators value SAP as a drop-in replacement for less stable Vitamin C forms, enabling the creation of clear, stable solutions that maintain potency over time. It is particularly effective in products targeting pigmentation disorders, dullness, and loss of firmness.

Storage and Handling

To maintain optimal quality, Sodium L-Ascorbyl-2-Phosphate should be stored in a cool, dry, and well-ventilated area. Containers must remain tightly closed to prevent moisture absorption, which could affect flowability. The standard packaging is 25kg per drum, though custom packaging solutions are available to meet specific logistical requirements. Proper handling ensures the material retains its specified assay and physical characteristics throughout its shelf life.