Levocarnitine Tablets (330 mg) Levocarnitine Oral Solution (1 g 10 mL multiple unit container) Levocarnitine Oral Solution (Sugar Free) (1 g 10 mL multiple unit container) For oral use only. Not for parenteral use. CoQ10 and L Carnitine: Benefits, Dosage and Safety Guide Bolt Pharmacy 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 Amazon.com: NaturaLife Labs Acetyl L Carnitine (ALCAR) 1500 mg per Serving 100 Capsules Non GMO, Gluten Free, Vegan : Health & Household