I was first introduced to Amino Vital Performance Products in 2010. As an endurance athlete who is always looking for the right recipe in a performance drink, I found Amino Vital Endurance to have just that. Now with the most recent release of their Pro-E and Pro-R products I have found these formulas to be effective in how I perform and recover. Not only am I consistently hitting faster times in my ultramarathon events but I feel good after all my hard workouts. I love what Amino Vital is doing to help make me a better, stronger, fitter athlete.