L Carnitine Linus Pauling Institute Oregon State University MARNYS L carnitine + Vitamin B5 90 capsules. What is L Carnitine? L Carnitine is a naturally occurring amino acid derivative that the human body can synthesize itself. It is mainly found in red meat and dairy products. [1] Core Benefits of Rebuild & Repair with Carnitine: Chronic illness? Your body needs extra nutrients to repair damage. Carnitine is a game changer for those with neurological, cardiovascular, or ocular conditions. Learn about how carnitine moves Shot In The Arm For Your Health: Why An L Carnitine Injection May Be The Answer You've Been Looking For Katalyst Wellness