Combining caffeine and L-Theanine forms one of the most popular productivity stacks amongst bio-hackers. You get the focus and attentive benefits of caffeine and also feel the calming effects of L-Theanine, an amino acid found in green tea.
Each vegetarian capsule of this stack contains 250mg of L-Theanine and 100mg of Caffeine - the recommended ratio for optimal performance.
“... L-theanine and caffeine in combination are beneficial for improving performance on cognitively demanding tasks.” (Journal of Nutritional Neuroscience, 2008
A quality stack made in an ISO licensed UK facility
We always want to be able to offer the highest quality supplements available.
Your 4 month supply in a single bottle
Each bottle contains 120 high-strength capsules combining both 250mg of L-Theanine and 100mg of Caffeine.
Delivered in 1-3 days to your door
We will send this out to you the same day if you order before 1pm. Delivery typically takes 1-3 days if you live in the UK or 3-7 days if you live in Europe.
100% money-back guarantee
If you don't like it, you don't have to pay for it. Most people are really happy with the quality of this stack - you can check out iits reviews below.
How to take your Caffeine and L-Theanine Capsules
Start with 1-2 capsules per day
But note that there's no real "maximum limit". Essentially take it whenever you would want to drink a coffee.
L-Theanine is extracted from Green Tea - and some people purposefully take a lot of it because of it's antioxidants and overall nutritional benefits.
Love Drinking Coffee and Just Want L-Theanine?
Get our high quality and pure L-Theanine on its own
For those of us who love to drink coffee and just want to add L-Theanine to it - you can also buy L-Theanine on its own on our store in capsule and powder form.
I can say I immediately feel an effect after taking one of these. I can basically focus longer and without distractions. Only "minus" is that the bottle label was a bit tilted, but hey. Would def buy again!