Compounded Carnitine (L) Injection Empower Pharmacy l Carnitine Supplementation in Recovery after Exercise Studies that examine the effects of L carnitine on performance Download Table L Carnitine Linus Pauling Institute Oregon State University If you're putting in the work but the scale isn't moving, your body might just need a little help tapping into its fat stores. That's where L Carnitine comes in. It's not a Frontiers Association between fatigue, peripheral serotonin, and L carnitine in hypothyroidism and in chronic fatigue syndrome