My 1st run with 1 bottle. I used Magnitropin as directed. Three capsules, twice a day for a total of six pills. The #1 thing for me was endurance was crazy after week 2. I was able to push out more reps then usual. At day 10, I did notice greater vascularity and and muscle fullness. Also worth mentions is a slight boost in libido and increase in appetite. My only regret was not running 2 bottles. My 2nd time with 2 bottles and I noticed 3 things from running 2 bottles. Strength/Endurance-I did increase all my rep by 2 or more per set.I did not add more weight to the bar. Appetite-This did boost my appetite. It allowed me to eat more and not see much fat gain. I noticed a big difference with my appetite running 2 bottles versus 1. Muscle fullness/Vasculararity Again I noticed longer lasting muscle fullness, increased pumps, and more endurance. Overall This is one of the best natty products there is.