L Carnitine Injection (Intramuscular): How It Works & What to Expect Mesotherapy Cocktails, Exosomes Regenerative Skin Boosters PDF) Effects of switching from oral administration to intravenous injection of L carnitine on lipid metabolism in hemodialysis patients Injectable vs Oral L Carnitine: Which Works Better? AWP L carnitine is an amino acid derivative that plays a crucial role in the bodys energy production processes. As an injectable supplement, L carnitine has been employed to support various health