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Liposomal delivery involves completely enveloping the Vitamin C or Glutathione(in solution) into the center of a suitable nano-sized lipid sphere. When supplemented, this lipid/glutathione sphere takes the lipid or fat pathway into the blood. And because the lipid is of a similar form and constituency to the the body cells, the lipid spheres then automatically melds with the cell walls then opens up to directly deliver its contents -- vit c or glutathione -- directly into the cells. This is a very efficient method of delivery for nutrients to the cells because it takes the lipid pathway -- so you can normally ingest much larger amounts of glutathione or vitamin c using this liposomal delivery method which are comparable to IV delivery methods.
I've also read research that has discovered that larger amounts of vit c can be delivered to the cells by this liposomal method than by IV because there is no problem or danger with excess vitamin c causing problems in the blood -- because the vit c is always surrounded or at the center of the lipid sphere while in the blood.
It is true that liposomal glutathione is also somewhat expensive but you can perhaps make the liposomal glutathione form by the same method used for making the liposomal vitamin c form. You can actually do this at home -- you will need soluble glutathione powder, organic granulated lecithin and an ultra-sonic cleaner (as used for cleaning jewelery etc) -- see this link for a description of how to make liposomal vit c :
