Injectable l carnitine has 100% bioavailability and it's a supplement, not steroid. Even as a natty you can use and it can also help you in your bulking process, not just in fat L Carnitine Plus Power Blendz Lets talk about L Carnitine, If youre in the gym community, youve probably heard of L Carnitine but what actually is it?, L Carnitine is a naturally occurring compound that plays a role in helping L Carnitine Injections: A Clinical Guide for Practitioners National Medical Resources Inc Comprehensive review of the expanding roles of the carnitine pool in metabolic physiology: beyond fatty acid oxidation Journal of Translational Medicine Springer Nature Link Why should I take L Carnitine?