Burn X is uniquely formulated to spare muscle and strength while burning fat. This allows you to retain quality muscles and stamina while achieving your bodybuilding goals. Burn X includeseffective fat burners such as Caffeine anhydrous, Green tea leaf extract, Yohimbine extract, ayennePepper fruit etc. these ingredients may also promote faster fat metabolism. The pounds that come offare pure fat. We have added BioPerine to our formula for better absorption. BioPerine is astandardized piperine composition derived from black pepper extract.