Everyone's biology is different and our uniqueness makes us awesome. Unfortunately, that also makes a one-size fits all recommendation for our products difficult and we cannot make specific recommendations, nor anticipate how an individual's metabolism will respond to the use of nootropics or nootropic stacks. Nootropic stacks can have vastly different responses among individual users. If you decide to test nootropics, introduce them slowly to your protocol, using less than a full serving and increase slowly over time, to the recommended usage as per the directions on the label.Please be responsible and if you have any health concerns consult with your licensed healthcare professional for further advice.