Taurine is an amino acid present at various levels in the body, including the brain, muscles, and retina. It plays various roles and is particularly essential for the development of the nervous system. However, it is its use in energy drinks that has made it famous.

Inositol is a chemical compound often classified among the B vitamins, although it is not a vitamin in the strict sense.

L-carnitine is a compound that contains a quaternary ammonium function, and it is biosynthesized from lysine and methionine. This molecule plays a role within the cell in transporting fatty acids from the cytosol to the mitochondria during the catabolism of lipids in energy metabolism.