Bests & Worsts Reviews from Amazon

I started taking this product a month ago so I could give an honest review. After about the first week I really noticed improvement in my ability to concentrate for long periods of time. Instead of having to get up from my desk and walk around every 20 to 30 minutes I was crushing 2 hours before I needed a break. But what I liked the most was that I was better in conversation after the second week. This product is great and out performed others I took that cost twice is much.