Neither L Carnitine nor Berberine work like caffeine, yohimbine, or fat burners. They do NOT: Spike your heart rate Jack up your nervous system Cause jitters or crashes Mask L Carnitine 3500 Metabolic Nutrition L Carnitine 6000 Liquid 1000 ml Extra High Dose Martinique Ubuy Zenement L Carnitine 3000mg 180 Vegan Capsules, High Dose Energy & Fat Metabolism Support For Active Lifestyles Fat Loss Marathontime L Carnitine Liquid 500 ml Eper z, zsrgets Maxler L Carnitine 3000 Citrus Flavor 14x25ml Vegan Liquid 3000mg High Dose Dietary Supplement with Measuring Cup Buy Now with Express International Delivery GoSupps.com