3-O-Ethyl Ascorbic Acid is one kind of Vitamin C ramification, which can dissolve both oil base and water base. It can easy penetrate horniness to reach the dermis. Then the enzyme decompounds them and releases the Vitamin C. Which enhance the usage of Vitamin C and more stable than the general Vitamin C. It can effectively inhibiting the formation of melanin by restrain the Cu2+ activity of tyrosinase. It also can inhibit dermatitis and improve the skin color and elasticity.
Items
Standards
Appearance
white to off white crystal powder
Melting point (℃)
111.0 -113.0
Assay (HPLC)
≥98.5%
Free VC (HPLC)
≤10 ppm
Colority (3% water solution)
≤25
pH (3% water solution)
4.0-5.5
Moisture
≤1.0%
Heavy metals
≤20 ppm
Arsenic
≤2 ppm
Ash
≤0.1%
Spec-Chem Ind.
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