I used to take 1200mg of this a day as that was the amount recommended in a study. I found myself more talkative, more organized and more motivated to do things. I now only take one capsule a day and although the effects aren't quite as strong, they are noticeable. I go into autopilot at work and don't seem to forget things as easily.
Posted by RealByNature on July 28 2017 | Verified Purchase
Though not as good as Now brand but I bought it for maintainence.. ............... Thank you.......
Posted by iHerb Customer on April 18 2011 | Verified Purchase
Posted by iHerb Customer on March 22 2011 | Verified Purchase
Posted by iHerb Customer on December 22 2008 | Verified Purchase
okay for older people as a supplement, not as effective ie immediate, long term use do not know
Posted by iHerb Customer on June 27 2008 | Verified Purchase
Fine thank you
Posted by iHerb Customer on June 10 2008 | Verified Purchase
Source Naturals is a good manufacturer. It is hard to tell if this helps.