After taking this supplement daily for around 5 months, I have seen and felt a noticeable difference in my stamina when doing intense mental or physical work. I am able to prioritize my goals without any brain fog or hesitation. Also, I can tell that only after about 3-5 mins from taking my morning capsules that I feel the instantaneous focus, mental alertness and dexterity settle in. Currently I am only taking 3 capsules a day and continue to drink my morning coffee. Currently experiencing g...Read more.