I took this product one time- and my focus and cognitive ability improved. I literally forget everything (I have a lot going on). On the first day that I took Pure, I took out my contacts and was starting to look for my glasses, it was so odd- I had total recall that I had dropped them behind the night stand the day prior. This would be something that I would normally forget, and spend time looking in my purse, looking downstairs, looking in my bed etc. This product is amazing- helped me think clearer at meetings and increased my energy for my work-outs. Call me crazy, but I definitely will be ordering more.