This product has far exceeded any expectations I had, and does everything the company claims. I'm a registered nurse and I have a very thorough knowledge of physiology, and the effects of glycerol on muscle hydration and muscle energy. Using this product, I've been able to get incredible pumps, and I'm able to make some of my workouts last up to 3 hours without muscle fatigue. I'm definitely sold on this product and will continue to use this for my lifetime!!! In just one week of using this, I've been able to lift heavier and complete more sets and reps than previously. I highly, highly recommend this product to anyone who's serious about their lifting and their pumps.