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, 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


    Caffeine L Theanine Dosage

    As a dietary supplement, take one Caffeine L-Theanine capsule 1-2 times daily.

    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.

    To gain more insight on the theanine and caffeine synergy, read the caffeine + L-theanine reviews and experiences below or see our Caffeine and L-Theanine blog


    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. Works For Me

      I take one of these at breakfast, and one of them at lunch, five days a week. No noticeable flavour beyond the half a second it takes me to swallow it (perfectly easy to swallow).

      Ingredients are basically the 300mg of active stuff, harmless filler to make it capsule-sized, and a vegetable gelatin capsule wrapped around it all. No problems there.

      If you are looking for a pill that makes you want to climb a mountain, these aren't it, but that's not the feeling I'm looking for on a weekday morning in the office, haha.

      They don't give you a buzz, pop one and within about two minutes you have the mental state of "alright, let's get some stuff done". And then I do.

      Planning on ordering more once this bottle runs out. Recommended.
      on 20th May 2018

    2. Better than expected

      I was originally turned on to Caffeine+L-Theanine through the product "Soylent". Despite enjoying coffee, I try to avoid it and use it like a utility, only when needed. When switching from standard coffee to "Soylent Cafe" I had a noticeable productivity boost, without the typical detriments (easily distracted, jittery, withdraw symptoms), investigating it led me to L-Theanine.
      Soylent is marketed towards those that are too busy to sit down for breakfast and coffee. Sometimes, I'm too busy for even a coffee alone, but I hope to never be too busy to swallow a single capsule. Not only are they convenient, but they're an order of magnitude stronger as well. In addition, they don't agitate my stomach, where with coffee it's a 50/50 chance that i'm going to start the day by spending 20 minutes traveling to and from the restroom.

      While I don't take these everyday, I'd never want to be without them. They are a solid backup for when things are rough but you need to keep going. It may be too much for some people but if you can handle/improve your focus, these things can be a huge aid.

      I've held off on this review to try and think of some negatives, haven't had any yet. "Works for me" seal of approval.
      on 17th May 2018

    3. great but strong

      100mg of clean and quality caffenine hits me like a truck.

      wish i could split these in half tbh

      sell 50mg!
      on 8th Apr 2018

    4. Love this stuff!

      Fast shipping and great product. Gives a boost of energy without the negative effects of caffeine such as jitters or anxiousness. Which is a must for me as I have anxiety issues anyway. I can take one tablet and I am focused and motivated for hours. Thanks nootropic Depot for another great product. on 8th Apr 2018

    5. helpful

      Serves a necessary purpose as a mood boost for me; it works and I’m thankful it’s available and that I am able to purchase this without having to go through the bs-procedures of obtaining a monthly prescription from a physician on 5th Apr 2018

    6. quite good

      Works quite well. 100mg of caffeine is a bit small in my opinion so I personally recommend you take it with a cup of coffee on 25th Mar 2018

    7. Awesome quality

      You must try it on 11th Mar 2018

    8. I don't know

      I mean It's hard to believe these contain caffeine, I'm on other meds so can't really judge, but I once took 10 and was able to fall asleep. on 5th Mar 2018

    9. Helpful synergestic effect, and just as effective taken solo

      As an adjunct to another Nootropic, or even alone, the results are unlike the stimulant caffeine alone: this provides a sense of focus, taking away the feeling of the jitters sometimes caused by coffee alone.

      As a repeat client, I recommend :)
      on 16th Feb 2018

    10. Great combo

      This is a great morning starter combo. I have been taking it for awhile now every morning, and I feel a lot better than if I just drink a cup of coffee. on 12th Feb 2018

  • Find Similar Products by Category