Ascorbyl Glucoside is a water-based derivative of Vitamin C and the gold standard in skin care due to its high stability and efficacy.It brightens dull skin and fades hyperpigmentation, helping to create a radiant glow while promoting collagen synthesis more efficiently than other forms of Vitamin C. In independent third party studies, collagen synthesis began to decrease at Day 5 when using other forms of Vitamin C, while collagen continued to build and remained stable with Ascorbyl Glucoside.