WHAT IS BURN Burn-XT is a potent natural fat burner supplement designed to burn fat, increase energy levels, boost cognitive function, and suppress appetite. THE BENEFITS OF BURN-XT Increased Fat Loss. Burn-XT is packed with science-based premium ingredients that burn body fat - Energy & Focus. Burn-XT will not only boost energy levels, but will also help improve mental focus. - Suppress Appetite. Burn-Xt will help stop food cravings, leading to greater fat loss & positive physique changes over time.