Posted by iHerb Customer on May 11, 2016 | Verified Purchase
I started using this after my energy levels were so low that I needed to go to sleep about an hour after I wake up in the morning. I read so many good reviews and decided to give it a try. After only one week of taking this and having only 1 cup of coffee a day, I experienced increase in energy. I now go for walks every every evening and very soon plan to go back to the gym.