Injectable vs Oral L Carnitine: Which Works Better? AWP L CARNITINE Why we chose to bring this injection on it pairs GREAT with our weight loss program, is a stellar stand alone injection, and is absorbed much more effectively as injection. AND, 6 Benefits of L Carnitine Injections MedHealth 360 The Benefits of Injectable L Carnitine Maximizing Absorption for Optimal Results, Looking for a boost in your workouts? Try injectable L carnitine! This amino acid is easily absorbed when taken L Carnitine Injection Levocarnitine IV