Liposomal Vitamin C

Verifiable Science

Vitamin C is a water-soluble nutrient that cannot freely cross the lipid membranes in the gastrointestinal tract, which limits its absorption.¹ Uptake of this nutrient requires carrier proteins, which escort vitamin C across the intestinal membranes to reach the bloodstream. These carriers have a low capacity and are easily saturated, especially at higher doses of vitamin C. This limits the amount of this nutrient that reaches organs and tissues, including the cells of the immune system.² In contrast, liposomes can freely diffuse across membranes in the GI tract.^3,4 Liposomal Vitamin C provides an enhanced-absorption form that does not require a carrier system. It contains PureWay-C^®, a clinically studied form of vitamin C that combines ascorbic acid with natural lipid metabolites and citrus bioflavonoids.^5,6 This enhanced vitamin C is loaded into small-sized, spherical, highly-stable liposomes, which are verified by electron microscopy to ensure the presence of intact, authentic structures. Liposomes can be absorbed directly across mucus membranes in the gastrointestinal tract, supporting enhanced bioavailability.^{7 ‡}