l carnitine base usp monograph L-Carnitine L-Tartrate translating to increased natural energy production Bulk L-Carnitine Base Powder 99%
Description
Mice supplemented with ALCAR had increased levels of noradrenaline and myo -inositol, and decreased GABA concentration in the hippocampus, and increased levels of serotonin in the cerebral cortex [107]

Now let's talk about what has some evidence, but is not proven or not approved as a medical treatment

Association of BDNF Val66Met polymorphism and brain BDNF levels with major depression and suicide

A study found that levels of L-carnitine and depression are related
