L Carnitine Injection vs. Oral Supplements: Which is More Effective? Katalyst Wellness Compounded Carnitine (L) Injection Empower Pharmacy Why Injectable Carnitine Outshines Oral The Ultimate Bodybuilding Advantage! Injectable L Carnitine: Does It Really Work for Fat Loss? How to Self Administer Subcutaneous & Intramuscular Injections Austin Hodges IFBB PRO L Carnitine is often marketed as a fat burner, but most people don't realize that oral and injectable L Carnitine are not the same. . Oral Instagram