I got the Ciltep and Smart Caffeine stack from Natural Stacks, after I had been taking the Smart Caffeine stack for about a month before I purchased the Ciltep. The stack was a little strong for me. I got a rush at the beginning and had a weird feeling stacking both products at the same time so I stopped taking the Ciltep, and Natural Stacks made it right for me. Of course I'm still taking the Smart Caffeine on a frequent basis and I like it a lot. I would say give the stack a try to see if it works for you, because at the end of the day everything works different for everybody.

2019-05-23

The NEUROFUEL™ + Smart Caffeine® Stack work very well together for me. I've experienced better concentration and energy.

2021-02-10

I love how CILTEP gives you a little boost of energy in the morning and since beginning on the Smart Caffeine I have not drank any energy drinks.

2019-08-01

Great products! The Neuro Fuel prepares me for studying all day and the Smart Caffeine helps me with the afternoon lulls. I really like that the Smart Caffeine doesn’t make me jittery and there’s no crash. Good stuff you guys. Well done.

2025-05-14

Of the stacks the Neurofeul is the best bang for the buck. Not sure how the smart caffeine is as a standalone

2021-08-06

I only wish all the products were available to try. Been waiting for quite some time and finally settled on just trying what was available. Definitely has a nice pick me up. Seems like I ran out of the nuro before the smart caffeine. Maybe as a stack there should be equally 30 days worth In both.

2021-07-31

The Neurofuel helps me to get going and focused in the morning and stay on track. The Smart Caffeine gives me energy to accomplish more.

2020-08-28

I love both of these products. I use the Smart Caffeine nearly daily. Such a better way to go than Preworkouts or other stimulants. Well done!

2020-04-01

The combination of Smart Caffiene and CILTEP is insaaaane. Smart Caffiene works better and smoother than a cup of coffee and last longer (can sometimes take an hour to kick in though) and CILTEP is the real deal when it comes to "making me feel smarter". I've really noticed CILTEP's effectiveness when I take it then play guitar shortly after. The connection and speed between notes is much faster and my memory of songs etc is way better. I can see this being very helpful for someone who is freestyle rapping or giving a speech/lecture as its helps you think of things/ideas before you say them. Go get it ;)

2019-12-31

I don't use the Smart Caffeine (I got the bundle as part of a special deal), but I can say the CILTEP definitely works. I notice I'm more in control of my concentration and able to filter out distractions, and put my thoughts into words better. It lasts all day but doesn't interfere with sleep at all, in fact sleep has been better lately. There's no up-and-down crash like with caffeine. Overall it's pretty subtle but noticeable.

2019-12-31

The one two punch that hotwires the brain

2020-06-24

Works very well with the dopamine.

2019-08-02

They work

2025-10-02