injectable carnitine l tartrate L-Carnitine Research Grade | ≥99% L-Carnitine L-Tartrate Capsules - Get
Description
Its principal physiological role is to transport long-chain fatty acids into the mitochondria the energy-producing structures within cells where they are broken down to generate energy

PMID 34959912

(1995): Selective activation of dopamine transmission in the shell of the nucleus accumbens by stress

It is related to vitamin B although its structure is very similar to amino acids
