I have tried many "Nootropics" and have steered away from things with additives and 8333% daily recommended servings of B-Vitamins. As far as this product goes I have recommended this to many friends as it is produced in a GMP facility like the products I make at my job, so I know its held under strict guidance from FDA and under CFR. The takeaway from this review is give it a try. Great product you will notice you will be a little sharper, a little more present, with no side effects. I will continue to purchase this product for some time! Thank you Dr. Emil and team!