Aniah B. reviewed Qualia Focus
Fantastic product. I got this because I was having exhaustion and trouble focusing. I also get full body pain and massive headaches. It solves my headaches and pain completely. I'm not sure why. I rely on this for my health regimen now.
Good for focus and productivity
Effects are subtle, but consistent. I'd describe them as a general increase in clarity and ease of focus for about 4-6 hours after taking before steadily winding down with no noticeable crash.
Focus
If you are looking for a totally natural way to enhance your focus and concentration, I highly recommend Focus from NeuroHacker. I has totally helped my performance at work.