I have taken many pre workout supplements over the years, so far nothing has compared to Muscle Oxide. It gives me the energy and alertness to get in a great workout even after a long day of work. But the best part is it does this without any ill side effects such as headaches, stomach aches, or mid workout crash. Muscle Oxide is a great product at an affordable price. I would recommend it to anyone who is looking to get the absolute most out of their workouts.