I would have given a 5 except for...
I got started on Akarkara as a sample to that came with some Horny Goat weed I had purchased.  It said it was a vasodilator and a "brain tonic".  I was curious as I had been having some, (if you will), mental cloudiness and was becoming concerned as my wife had even mentioned it to me.  I tried the sample pack and thought , maybe I can tell a little difference, so I ordered a bottle.  I've not been taking this but for a couple of weeks and I can only say that I have moments of break through the clouds in my mind.  When I'm through the clouds, my mind is so much sharper.  I believe that with continued usage this will continue to improve.  I'm very optimistic.  I can't put my finger on just whats working, but there is definite improvement.
Rating: 4 stars