Amazon.com: Carlyle L Carnitine Tartrate 2175mg 200 Capsules Advanced Athlete Formula Workout Supplement As L Carnitine L Tartrate Non GMO, Gluten Free : Health & Household What kind of results have people been getting from using L Carnitine for Peripheral Neuropathy? L Carnitine Capsules Performance Supplements Myvitamins Early research into L carnitine was often cited as underwhelming, showing negligible changes in muscle carnitine content and fat loss outcomes. However, these findings may have been limited by a short study window