I don't drink coffee (it upsets my stomach). Using very strong black tea sometimes helps me, but it was getting to the point where I was relying completely on Extra Strength 5-Hour Energy to get through my day. I was going through a bottle a day, which adds up to around $100/month! Yikes! I am very happy with the Smart Caffeine supplement...I take it as soon as I wake up in the morning, and it gives me long-lasting quiet energy. I only rarely have to take more than one a day. Not only am I able to be more focused and productive, but I'm saving a boatload of money as well. Very grateful for this product!

My favorite nootropic by far. Very convenient if you need an energy boost.

Helps me to concentrate and be more alert.

I work in a stressful medical laboratory, and I need a boost while also staying calm. The caffeine and L-theanine blend is a great combo!

Recommend!