Research studies show that vitamin C encapsulated in liposomes provides greater concentration of vitamin C than the ingestion of unencapsulated vitamin C. Liposomes are manufactured microscopic, hollow spherical vesicles composed of a lipid bilayer. When loaded with pharmaceuticals or dietary supplements, liposomes are an effective drug delivery method as they override the usual intestinal absorption pattern and facilitate the entry of vitamin C into metabolically active cells and tissues. Liposomal vitamin C is shown to more effectively lessen oxidative stress induced by ischemia–reperfusion—tissue damage caused when blood supply returns to tissue after a period of ischemia or lack of oxygen than unencapsulated vitamin C.
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