Nootropics Depot Free Shipping on USA orders over $50
Same-Day Shipping on Most Orders Placed Mon. - Sat. by 4pm AZ MST
Business Hours: Mon. - Sat. 9am - 5pm AZ MST
Image 1

Caffeine 100mg + L-Theanine 200mg Capsules

  • Product Description

    Caffeine and L-Theanine Capsules

    Caffeine is a common compound associated with coffee and colas, while L-theanine is a natural amino acid found in tea leaves and mushrooms. Combining the two compounds in a nootropic stack or taking caffeine + l-theanine capsules has become more popular, offering a variety of potential benefits to your physical health and mental abilities.

    How Caffeine and L-Theanine Capsules Work

    Caffeine is commonly used to temporarily increase alertness and overall performance and efficiency. While it doesn’t technically qualify as a nootropic, caffeine has still been shown in certain studies to improve your brain’s functions and your own mental performance. Unfortunately, caffeine can come with some severe drawbacks, namely jitteriness, increased anxiety, sleep problems, and the inevitable crash when its effects wear off.

    L-theanine is a natural compound. It is an effective nootropic that can stimulate the production of neurotransmitters while interfacing with other neuroreceptors. In smaller doses, L-theanine has been found to improve mental focus, while higher doses of it may create a significant calming effect.

    Stacking L-theanine with caffeine can balance out some of those drawbacks while boosting the effects of both. This combination wasn’t just a manmade discovery either. Caffeine and L-theanine naturally appear together in green tea leaves, which have been brewed and enjoyed for providing relaxation and clear focus all at once.

    Caffeine and L-Theanine Uses and Benefits

    Combining caffeine and L-theanine can amplify and refine the effects of the two compounds to bring out the best of both. L-theanine’s inhibitory presence prevents the hyperactivity and restlessness associated with using caffeine. Studies show that the stack’s results on cognition are significant.

    L-theanine on its own has been shown to promote GABA production. GABA, or gama-aminobutyric acid, is a neurotransmitter that acts as the main inhibitor in the human central nervous system. GABA can block stress messages, reduce neuronal excitability, and generate alpha waves. Alpha waves are associated with a state of extreme calm and relaxation.

    Preliminary studies suggest that caffeine provides certain neuroprotective properties. Research suggests that caffeine may also be an effective alternative for headaches and as a general mood booster.

    L-Theanine and Caffeine Synergy

    Caffeine + L-theanine benefits become amplified when combined as a stack. Studies have shown a variety of beneficial results, including:

    • Improved reaction times
    • Greater dexterity
    • Increased visual acuity
    • Increased mental focus
    • Greater sense of alertness
    • Improved memory recall
    • Greater natural attention span


    Where to Buy Caffeine and L Theanine Capsules?

    Nootropics Depot offers 60ct. or 180ct. jars of high quality Caffeine and L Theanine capsules. Nootropics Depot's Caffeine and L Theanine has been lab-tested and verified for both product purity and identity.

    Get more insight by reading L-Theanine reviews and experiences below.

    To gain mre insight on the theanine and caffeine synergy, read the caffeine + L-theanine reviews and experiences below.


    Attention: This product is not intended to diagnose, treat, cure, or prevent any disease. It has not been approved, nor have these statements been evaluated, by the FDA.

  • Product Reviews


    Write A Review

    1. awesome

      These pills are the best! Love this L-Theanine / Caffeine ratio, it's like caffeine but without the side effects from caffeine.

      And NootropicsDepot always delivers great products, super fast!
      on 12th Apr 2017

    2. Consistently Great Results

      I have tried a few different racetams and had quite disappointing results. They're quite inconsistent, one day they may work the next they don't. Or you have to take them for 3-4 weeks before you notice any effects. So I was very happy when I tried these caffeine & l-theanine capsules. They work great...every time! They give me a nice boost in focus and motivation but with the calming effects of the l-theanine. I don't get the anxiety or edgy feeling as I would when drinking coffee. Its a nice relaxed buzz. on 8th Mar 2017

    3. Does these pills have an expirationdate?

      I am really happy with the pills i bought. They keep me very focussed at work. Also when I come home i'm much more productive and less lazy. I can read my books in the evening without getting distracted by tv or my smartphone all the time.
      I ordered a bunch of boxes of 180 pills to reduce the shippingcosts to Belgium. The only thing is that i can't find an expiration date on the containers. Do they expire or at one point become less effective by time?

      **ND Admin- Both caffeine and L-theanine are very stable. As long as they are stored properly away from moisture and sunlight, they should be potent for many years. You can find the production date of your bottle. The last digits on the end of the lot number are the production date.
      on 5th Mar 2017

    4. perfect combination at the perfect doses

      If you do your research, you'll find that Caffeine and Theanine are extremely synergisitic which is why they're included in products like these.

      However, most products I've tried under-dose the Theanine (for cost reasons). 200mg Theanine for every 100mg Caffeine is the ideal ratio according to most of the research.

      My caffeine tolerance is very high so i take like four at a time but the Theanine really balances out the negative sides of caffeine.

      -Matt Theis
      Creator/Editor of
      on 16th Feb 2017

    5. Works well

      I enjoy my caffeine with the L-Theanine as opposed to having it by itself. My experiences with ND have been nothing short of great! on 15th Jan 2017

    6. Save Money

      One capsule substitutes well for morning coffee, and with none of the digestive issues associated with coffee. Be sure to drink more water to compensate though. on 14th Nov 2016

    7. Well packaged.

      The delivery was quite swift considering where I'm from (+ well worth the express's price). The package was good. I took this with phenibut. The caffeine cuts down the time for the phenibut to take effect. Taking this solely, I'm not quite sure if I see the results. But the whole day I wasn't sleepy or drowsy. Also, I don't get the super let down like I always would if I start drinking coffee regularly. Perhaps, that is the result. Not sure. Either way, I'll buy this again. on 4th Sep 2016

    8. Never caffeine without theanine

      The perfect thing for someone new to nootropics or who doesn't use caffeine because of its side effects on 22nd Jun 2016

    9. Much better value

      What was I doing paying $20 for 60 capsules from Natural Stacks? Nootropics Depot has the same shit for $8! It works just as well, the customer support here is great, and the branding even looks better. I though it might be just this product, but all their products are cheaper than other places. You guys just earned yourself a new regular customer. on 2nd Jun 2016

    10. If you're looking to quit energy drinks/coffee, this is for you.

      I used to drink 2-3 energy drinks a day and decided I wanted to quit, but didn't wish to get all the withdrawal effects. This really helped and now 2 months without energy drinks or coffee, first time in the last 5 years. on 30th May 2016

  • Find Similar Products by Category