The formula of Smart Caffeine is pretty simple and straightforward.
L-Theanine is a naturally occurring amino acid with benefits that include mental relaxation, reduced stress, improved working memory, enhanced learning, and increased alpha brain wave activity.
It is one of my favorite nootropics that has the role of a relaxing agent without sedation. The relaxing and attention promoting properties of L-Theanine have its most significant supplemental role in attenuating the edge of many stimulants.
A combination of L-Theanine with caffeine is noted to promote cognition and attention. 
Caffeine is the world’s most popular natural cognitive enhancer.
It is a powerful stimulant which is used to improve physical strength and endurance. Why is it classified as a nootropic?,
Mainly because it sensitizes neurons, and also because it provides mental stimulation. Caffeine’s main mechanism concerns antagonizing adenosine receptors.
It causes alertness and wakefulness. The inhibition of adenosine can influence the dopamine, serotonin, acetylcholine and also adrenaline systems. 
Smart Caffeine Dosage
The suggested dosage of Smart Caffeine is 1-2 capsules whenever focus and attention are desirable.
According to Natural Stacks, it is not recommended to take it in the evening or before sleep.
Also, it is not recommended to take more than 6 capsules per day.
Whenever I need an extra push, I take 2 capsules of Smart Caffeine, but I avoid taking it daily.
I prefer to take it in the morning after breakfast.
I’d definitely advise you to NOT take the supplement after 2 PM just to avoid any sleep-related issues.
For the ultimate performance, I’d recommend you combining Smart Caffeine with my favorite nootropic stacks.
Click here to check them out.
Smart Caffeine Reviews
Alongside all other products of Natural Stacks, Smart Caffeine has also a great reputation! Natural Stacks’ reputation is definitely not in vain.
There are many feedbacks and reviews of this product and here I listed few of them:
“Smart Caffeine provides a boost in mental alertness and focus without any of the jitteriness that comes with other caffeine products. It’s a great product and I highly recommend it!”
“Love this product. I’m usually a 2 – 3 cup of coffee a day. With Smart Caffeine I maintain focus and mental energy with no jitters or crash.”
“Simple yet effective product for a great price. I’m not a big coffee drinker so I thought it still might give me the jitters (even with the l-theanine), but it hasn’t at all. I feel a nice sustained energy from it without the anxious and jitters feeling you can get from drinking coffee or anything with a lot of caffeine. Will buy again.”
“I can unequivocally recommend this product. I have been experimenting with Nootropics for about 2 years with varying results. Personally, I find it hard to quantify how effective some of them are. Sometimes the effects are obvious, other times not so much but when you look back on the time you were taking them and what you got done the advantages becomes a lot clearer. This is one of those rare nootropics products which it’s clear to see the effects immediately. Essentially it does what it says on the tin, energy and focus without the shakes.”
Where To Buy Smart Caffeine?
I’d recommend Smart Caffeine to everyone who is searching for:
- Increased focus and alertness
- Improved cognitive function
- Enhanced short-term memory retention
- More ability to ignore distractions
- No overstimulation
You can buy Smart Caffeine here.
At the price of 19,95 USD, it’s very affordable.
I’m sure you will love it.