I had reviewed this product in a negative light about 8 months ago. Since then I have not used it until about a month ago, and I am actually going to have to completely change my mind and write a positive review. I beleive the reason I disliked it originally is that I was mixing it too many other "brain health" supplements at the same time and the mixture was probably not really good for testing this product in a fair way.
Nnow that I have tried this product by itself for the last month, I find it very effective in memory retention, as well as producing a focused and clear state of mind. I have decided to work it into my daily regimen as it is definitely instrumental in improving the quality of my life and helps me retain focus throughout the day, as well as feel much sharper than I usually do. I did find that it worked right away, but as I continued to take it for a couple of weeks there was definitely a build up effect where I found it to become more and more effective. I would definitely recommend it to someone who is looking to improve their focus/concentration/memory and overall brain health and vitality.
As an unexpected benefit, in addition to energizing the mind I also found it very good for athletic recovery and mazimizing workouts, probably because it has cordyceps and reishi as part of the ingredients.
Overall, I would call this formula effective in doing what it claims to do - increase focus, mental clarity and memory recall. I hope they keep it around and not discontinue it like the last formula.