Sodium Ascorbate is a sodium salt of L-Ascorbic acid or Vitamin C, a member of a group of food additives called mineral ascorbates. Although it is mainly used in the food processing industry as an antioxidant, preservative, acidity regulator, and vitamin C supplement (E301), Sodium Ascorbate is a valuable ingredient for personal care applications.
It has been clinically tested for treating various skin conditions and even diseases like melanoma and proved its effectiveness for vitamin C-like action and killing cancer cells. But unfortunately, Sodium ascorbate inherited a weak point of L-Ascorbic acid - instability; in formulations, it should be protected from air and light, which can break down this powerful ingredient. Thus, liposome or another type of encapsulation is crucial for the effectiveness and shelf-life of this ingredient.
Compared with pure L-Ascorbic acid, Sodium Ascorbate has better bioavailability thanks to the presence of Na+ cation. Special proteins Sodium-dependant Vitamin C Transporters are responsible for transferring ascorbate anion (vitamin C) into the cell. A higher sodium gradient provides a higher penetration rate.
Like vitamin C, Sodium Ascorbate is a potent antioxidant. In addition, it works well in synergy with other free radical scavenging molecules like tocopherols (vitamin E), protecting cell membranes, DNA, and other structures from oxidative stress and UV-induced damage. In addition, sodium Ascorbate exhibits all beneficial effects of L-Ascorbic acid on the skin, including boosting collagen production, suppressing melanin synthesis, and enhancing cell metabolism and skin recovery. It is a perfect anti-aging ingredient with many benefits for the skin's healthy, smooth, and bright appearance.