L Carnitine is an amino acid found in high concentrations in muscle, heart, and liver tissues. Inside the cells, L Carnitine transports fatty acids into the mitochondria for energy production (i.e., ATP) and reduces Zen Stress Support 200 mg Allergy Research Group Swanson Vitamins Full Spectrum Hemp Extract Sleep Support How to Take L Carnitine Liquid: Complete Guide The Science of Good Health Acetyl L Carnitine, 500 mg, Jarrow Formulas, 60 capsules ADHD and L Theanine: Benefits, Risks, and What Research Shows