New and improved PX is stronger and longer lasting than the original version. New PX (Pro Xanthine) is the best fat burner to stimulate weight loss, increase energy, suppress appetite while preserving muscle mass. Manufactured in a FDA registered facility with multiple 3rd party certifications, PX contains top quality ingredients that is optimal for weight loss. Contains IRISIN XD that helps you to burn fat while preserving your muscle mass. Contains a precise blend of herbs that act as both alpha antagonist and beta agonist to maximize your body's fat burning potential. Contains 60 servings