Review on Pro-Series Muscle Builder - High-Quality Energy Supplement for Muscle Building and Mass Gain - Enhance Muscle Growth, Optimize Post-Workout Recovery, and Increase Pre-Workout Strength - 60 Servings, Grape Flavor by Will Singh

It will take time to see the effects, multiple doses, but since this product has 60 servings, you'll have plenty of time to feel the effects. I have found that I can run much longer without the horrible burning sensation in my lungs. It also seems to have something to do with my muscles as I can do a few more reps during strength training which leads to weight gain. Definitely recommend this product! I highly recommend taking this product daily even if you are not exercising that day as the PeakO2 official website states that regular doses are required to build up and have an effect. Be careful as the product is incredibly beautiful and will create a cloud at the slightest disturbance. There's really no taste, it's basically an earthy taste, but you take supplements for the effects, not the taste.