The gold standard of Vitamin C. L-Ascorbic Acid is the most researched and bioavailable form, but also the most unstable. It requires a low pH (below 3.5) to penetrate the skin and work effectively.
The gold standard of Vitamin C. L-Ascorbic Acid is the most researched and bioavailable form, but also the most unstable. It requires a low pH (below 3.5) to penetrate the skin and work effectively.