After taking a different supplement company's powder version of zma, and not reacting well to it, I must say that I was hesitant in wanting to try any other form of zma. The main issue was that I would wake up in the middle of the night and be on the toilet for quite some time. However, I decided to purchase this product as it was a very good price, and i have had great experiences with BBW products. I was able to get good nights sleep, something which i hadn't had for a few months, and I woke up feeling refreshed. Even if it is just for helping with the sleep, I do recommend this product.