The Marvelous Experiment is a popular pre-workout supplement designed to enhance workout performance.The Marvelous Experiment is a popular pre workout Supplement designed to enhance workout performance. Its formulated with a combination of ingredients that aim to boost energy, focus, strength, and endurance during exercise. Typically, pre workout supplements like this are taken 2030 minutes before a workout to give you an extra boost in the gym, helping you push through intense training sessions with more energy and focus.