“Have been using it for almost 3 weeks, using the low suggested quantity (2 pills). So far, I feel that I can concentrate a bit more and no headache afters a long study session, but no major change.”
“Excellent product. However benefit is greater if you cycle the product as the body gets use to it. I find 4 weeks on 1 week off when in an phase where concentration is required, then a complete month off before returning.”