Injectable L Carnitine How It Works & What to Expect? Injectable carnitine vs oral version comparison? L Carnitine injections for boosted daily energy Comprehensive review of the expanding roles of the carnitine pool in metabolic physiology: beyond fatty acid oxidation Journal of Translational Medicine Springer Nature Link ORAL VS. INJECTABLE L CARNITINE , Does it really matter which you use? , Both have pros and cons but it really comes down to what is going to be most suited to use as an individual athlete.,