Caffeine + L-Theanine (100mg/250mg) Capsules

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A Quality 2-in-1 Stack for Focus and Productivity

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.

Customer Reviews

Based on 5 reviews
5 Star
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  • Reviews (5)
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A
12/05/2017
Anonymous
Norway

Better than expected!

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!

A
11/12/2017
Anonymous
Italy

Good quality of the product

The product was well packed and protected, sealed. I should still test the effect of the supplement because I did not feel a great focus.

A
09/12/2017
Anonymous
United Kingdom

Excellent service and quick delivery

Easy to buy and very fast delivery. The products are very high quality and price was great for what you get.

SF
06/23/2017
Sam F.
United Kingdom

Good product

Fast shipment, good product - doesn't have a huge effect but just aids focus and relaxation.

RC
06/12/2017
Rob C.
United Kingdom

Caffine + L-Theanine

Great supplements. Gives me a nice boost and evens out my mood without giving me the caffeine jitters. Would definitely recommend.