I bought these for my dad who is around 70 years of age and suffers from narcolepsy. He has good focus and memory, but had issuses to stay awake espically during the later time of the day. Until recentley he also started saying he has started to forget things alot. I got him a bottle to try as I have heard good things about this nootropic. He started takes 3 capsule in the moring and 3 in the afternoon,as it was difficult to take all 7 at one time. The effects were immedialty visible. He admi...Read more.