Researched and developed by world renowned strength and conditioning specialists, professional athletes and bodybuilders, MASF RUSH Pre-workout will take you to a new level of performance. Our product is formulated without any proprietary blends or fillers and our labels are 100% transparent. We use only the highest quality ingredients, plant extracts, and amino acids to give you incredible energy, focus, and motivation during your workouts! Our ingredients work synergistically to help you burn more fat, boost thermogenesis, and increase protein synthesis! This product is sugar free and may be taken in combination with MASF Recovery BCAAs.