0 an oily substance found naturally in human skin cells and in the liver (= an organ that cleans the blood) of sharks (= large fish with sharp teeth). It is one of the substances used to make moisturiser (= a substance put on the skin to stop it becoming dry): --
Squalene occurs naturally in the human body but can be harmful when injected with a vaccine.
Squalene is a long carbon molecule of 30 carbon atoms and it has six unsaturated carbon bonds.
Amaranth oil, high in squalene and unsaturated fatty acids, is used in the food and cosmetic industries.