AKG Shark Liver Oil is extracted from the Dogfish species. It is only 3-4 feet long. It is not the great white shark we usually see in the movies. So you don't need to worry about their extinction.

In 1922, a Japanese scientist, Mitsumaru Tsujimoto, discovered alkylglycerols (AKG) in shark liver oil.

In the 1950s, a doctor who worked in a children's hospital, specializing in caring for leukemia children, had the idea of stimulating white blood cells' production and directing research to the bone marrow.

After years of research, in 1952, a Swedish doctor Astrid Brohult and her husband, Professor Sven Brohult, finally confirmed that alkylglycerols (AKG) is an essential active substance in the bone marrow and found that shark liver oil has the highest content of alkylglycerols (AKG) .

Their brilliant work and perseverance are much appreciated transforming this immune secret into today's shark liver oil.