24k, Gold, Glutathione; our newest Ascorbic acid delivery system serves to improve the stability of ascorbic acid, and extends the lifespan of ascorbic acid in the skin. Additionally, glutathione is a precursor to ascorbic acid, so it regenerates ascorbic acid as it is used up by our skin. This results in an effective delivery system that far outperforms any % of free ascorbic acid or other ascorbic acid derivatives. Also, with regular ascorbic acid, it becomes a pro-oxidant as it gets oxidized- essentially meaning that it may in fact donate free radicals back. The glutathione conjugation prevents this from ever becoming a pro-oxidant.