When a regular capsule or pill is ingested it must first pass from the mouth through the digestive system to finally be absorbed in the small intestine.
During this process, digestives enzymes in the mouth and stomach, digestive acids, bile salts and various gut flora degrade the nutrients before they are finally metabolised by the liver and made available to the body.
This entire process slows and reduces the nutrients' bioavailability.
Liposomes are attractive encapsulation systems that provide enhanced stability of encapsulated materials against a range of environmental, enzymatic, and chemical stresses. These may include the presence of enzymes or reactive chemicals, and exposure to extreme pH, temperature, and ionic strength changes.
Liposomes have been widely used in the pharmaceutical and food industries because of their biocompatibility and biodegradability. Their absence of toxicity, small size, and ability to carry a wide variety of bioactive compounds, due to the amphiphilicity of the phospholipid encapsulating material, make them a popular delivery agent.
Once the liposome has reached the small intestine it is absorbed by the enterocytes of the villi. Inside the enterocytes, the liposomes are incorporated into chylomicrons.
Together, they travel through the lymph system, bypassing the liver (portal circulation) into the subclavian vein.