L Carnitine Injection (Intramuscular): How It Works & What to Expect Mesotherapy Cocktails, Exosomes Regenerative Skin Boosters L Carnitine is one of the most hyped weight loss supplements online but here's what most won't tell you: Your body naturally produces L Carnitine using amino acids l, and a healthy person L Carnitine 500mg L carnitine is a naturally occurring compound that helps your body convert fat into energy. It's often used as a supplement for fitness, weight loss, and overall health. #lcarnitine #fitnesslife #supplements #gymaddict #gymmotivation