NATURAL STACKS Smart Caffeine Pills - 100mg Caffeine + 200mg L-Theanine Supplement - Supports Energy and Focus - No Jitters and No Crash - 60 Capsules

This supplement get up and make my day.

excellent and outstanding natural energy and Blessed to just happened to find it .🙏🙏🙏

I very much liked the energy this product gave me. No spikes. Now lows. Energy without the crash. I highly recommend. Take 1 capsule first thing in am then another mid-afternoon. No sleep issues. Allowed me to cutback on regular caffeine intake. Would highly recommend to anyone. Give it a try.

I love this product (like most products I try from Natural Stacks). I take this about 10a or 11a and I don't get that after-lunch slump that usually makes me want to crawl under my desk and take a nap. One pill gives me hours and hours of sustained energy with no jittery-ness of other ways to get caffeine. Grab a bottle today and check it out.

I personally did not feel any different when taking a bottle of neurofuel. I then decided to take smart caffeine and I immediately had energy and could last longer in activities. I enjoy the non stimulant energy better than coffee because it does not give me the negative effects. I will continue this product because it is useful and works for me. I would give it 5 stars.

I've been taking Natural Stacks Smart Caffeine for a little over a month, and the stack is great! Good smooth energy and focus with no crash, and you can take it later on during the day and still be able to sleep well at night. Great supplement. Thank you Natural Stacks!

Loving this stuff on an as needed basis. I don’t take it daily and often times only once or twice a week but it for sure gives that desired energy boost without the crash or jitters, just as advertised, which pretty much rocks. I’m on a steady nootropics cycle and this helps a lot on those occasional days when I can use an extra burst. Buy with confidence!

When I need energy without the jitters or crash this product is my go to. I can take it with me everywhere I go and I don't have to worry about sugar or calories messing with my meal plan. Who doesn't love some clean energy?! Love love smart caffeine!

pretty good 👍

Smart Caffeine is a great nootropics staple. The combination of caffeine and L-Theanine has been proven to be synergistic in terms of cognitive enhancement. I've been enjoying this combo for a while, especially as a late afternoon bump in energy. Caffeine regardless is always going to have a crash afterwards. But the addition of L-Theanine seems to mellow out the curve. Less of the jitters at first, and less of the crash later. Being an EMT who needs to be up late, having the combination in capsule form is quick and effective. I do wish that Natural Stacks included varying ratios however as to titrate the effects. Currently the product is 100mg caffeine and 200mg L-Theanine. I would love to see micro-doses at 25mg Caffeine and 50mg L-Theanine. Maybe soon to come?