L Carnitine Lipolysis Vials Professional Fat Burning & Body Contouring Mesotherapy SlimSpa SlimSpaOnline L Carnitine Injection Products list Products Ceva Australia 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 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.,