As a Dietary Supplement, mix 1 scoop of Pre JYM® in 12-32 oz. Pre Jym Review – The Final Verdict. One thing you should know is that Jym Pre is a quite expensive pre-workout. of water and drink 35-40 minutes before workouts. If you fall into the first group, you will find Pre Jym to be a great pre workout … Also consider drinking … It claims to be the most effective pre workout … Pre-Workout Supplements Muscle Builders Energy & Endurance Performance Supplements View All Herbs & Natural Solutions Herbs A-E Herbs F-N Herbs O-S Herbs T-Z View All ... Jym® Post Jym Fast … It is a long-running company and it recently innovated and improved its formula in the form of JYM Supplement Science PreJym supplement.. Those looking for a great pre workout. GREAT TASTE - No other pre-workout supplement surpasses the great taste, texture, and nutrition of Pre JYM. … Considered allowing Pre JYM to mix 10-15 minutes before drinking. Those trying to figure out what the difference is between this and the old Pre Jym supplement. There will primarily be two groups of people looking at Pre Jym 2.0. Simply mix with 12-32 ounces of water and drink 30 minutes before your workout … However, let’s get down to business. JYM is the supplement company founded by Dr. Jim Stoppani. You’ll pay roughly €40 ($45) for 30 servings which are pricey compared to other pre-workouts.