L Carnitine Injection: Benefits, Dosage And Risks L Carnitine Injection In Reno, NV Aesthetics Medspa TRT Doctors, Vigorous Steve and MPMD recommend oral L Carnitine Tartrate supplementation for increasing androgen receptors count or sensitivity. I remember Eric Trexler disagreeing with this. Have you changed your mind? Why are What is L Carnitine, L Carnitine is an amino acid that plays a role in energy production and fat metabolism. Its found in foods like red meat, fish, and dairy, and also available as a supplement.,