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.