Liposomes are very small microscopic multi-layer spheres made of phospholipids, which are the basic building blocks of cell membranes. They encapsulate a compound, such as glutathione, in order to bypass the digestive processes that normally degrade or limit its absorption. Liposomes have demonstrate that they can cross the blood-brain barrier, deposit their cargo intracellularly and enhance lymphatic circulation of therapeutic compounds. Additionally, the phospholipids that compose the liposome feed the cell membranes. This ensures the proper function for the absorption of nutrients and the excretion of cellular waste products and toxins. Liposomes bring the power of intravenous therapy into a convenient oral delivery. Quicksilver Scientific uses only the highest purity injectable-grade phoshpatidylcholine!