I use the Nootropic Mind drops in my coffee every morning and have been for the past 8 months. I use 15-20 drops depending on my energy level when I wake up. I notice a significant improvement in my mental clarity, focus and memory for both work running a business and training in the gym and on the rugby field. Only 10-15 minutes after taking it I feel the effects and stay alert and switched on throughout the day. Also a great hangover cure:) Thanks, Nature’s relief! and goodbye concerta.