L Theanine Supplement Nutricost L Carnitine Tartrate Powder Fat Metabolism Performance L Carnitine Supplements L Carnitine Supplements Nature's Best Acetyl L Carnitine is a modified form of carnitine that has the dual benefit of supporting mental fatigue, improving mood levels and alertness as it crosses the blood brain barrier with ease while supporting Liquid L Carnitine Energy, Metabolism & Fat Burning Allmax Carnitine Tartrate is a sports nutrition supplement featuring L Carnitine L Tartrate (LCLT) to support energy metabolism, fat transport into cells for fuel, exercise performance, endurance, and recovery, often used by active individuals