I am very happy with the product for memory.. I had been experiencing lack of energy, some brain fog , and some slowness of memory. Tried various things which either had no effect or made me feel worse. I decided to try your product...started with the recommended dose - 2 tabs. Definitely felt more alert and energetic. The problem was, I didn't sleep for 2 nights. i am small - less than 4 ft tall, 93 lbs so i decided to try 1 instead of 2 tabs. I am thrilled - I feel more alert without being overhyped. Thanks Thanks! thanks!