Liposomes were discovered in 1965 by Bangham and they are tiny little spherical vesicles with a bilayer structure made of phosphatidyl lipids.  The unique lipid-based bilayer structure renders liposomes the best vehicle to deliver both hydrophilic (water-liking) and hydrophobic (water-fearing) nutrients directly into cells in body. Liposomes are made of food-grade phosphatidyl lipids such as phosphatidylcholine, phosphatidylserine, phosphatidylglycerol and etc., derived from sunflower, soy or egg yolk. Liposomes are safe as they are naturally occurring as major components of cell membranes in the human body.