Bests & Worsts Reviews from Amazon

During med school, I tried everything there is to improve my memory and clarity.of cognition. Among those I’ve tested are True Brain, Optimind, and Master Brain, and noticed negligible improvement and spent a fortune in the process. There are only two that I felt actually had any noticeable impact, this one and one other, and ironically, they are the cheapest. I’ve felt an improved clarity and focus. Also, this one costs a fraction of what other similar products cost. I’m definitely ordering them again.