Healthife CAS 36687 82 8 98% L Carnitine Tartrate L Carnitine Powder Is L carnitine completely useless?, No, while oral l carnitine has minimal effect, acetyle L carnitine form is generally more bioavailable, it may not be show a drastic change, but it does help L Carnitine Powder L Carnitine Supplements NOW Supplements A Brief video on injectable L carnitine and an article on Oral application and the relevant research. : r Supplements