---
product_id: 653454623
title: "BULKSUPPLEMENTS.COM L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free - 200mg of L Theanine Powder per Serving, 1kg (2.2 lbs)"
brand: "bulksupplements"
price: "€ 149.18"
currency: EUR
in_stock: false
reviews_count: 5
url: https://www.desertcart.sk/products/653454623-bulksupplements-com-l-theanine-powder-l-theanine-supplement-l-theanine
store_origin: SK
region: Slovakia
---

# Pure, additive-free formula 200mg precise dose per serving cGMP & third-party tested quality BULKSUPPLEMENTS.COM L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free - 200mg of L Theanine Powder per Serving, 1kg (2.2 lbs)

**Brand:** bulksupplements
**Price:** € 149.18
**Availability:** ❌ Out of Stock

## Summary

> 🧠 Elevate your focus and calm — the smart millennial’s secret weapon!

## Quick Answers

- **What is this?** BULKSUPPLEMENTS.COM L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free - 200mg of L Theanine Powder per Serving, 1kg (2.2 lbs) by bulksupplements
- **How much does it cost?** € 149.18 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/653454623-bulksupplements-com-l-theanine-powder-l-theanine-supplement-l-theanine)

## Best For

- bulksupplements enthusiasts

## Why This Product

- Trusted bulksupplements brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Immune Boost Meets Calm:** Support your immune system while unwinding naturally after a hectic day.
- • **Pure Power in Every Scoop:** Experience clean, gluten-free L-Theanine with no artificial fillers or flavors.
- • **Sharper Focus, Zero Crash:** Enhance mental clarity and productivity without jitters or sugar crashes.
- • **Trusted Quality Assurance:** Manufactured under strict cGMP standards with multi-stage third-party testing.
- • **Versatile Wellness Ritual:** Easily blend into smoothies, yogurts, or your favorite recipes for daily calm.

## Overview

BulkSupplements.com L-Theanine Powder delivers a pure, gluten-free 200mg dose per serving designed to boost focus, support immune health, and promote relaxation. Manufactured under rigorous cGMP standards and verified by third-party labs, this 1kg bulk powder offers a versatile, additive-free supplement ideal for professionals seeking natural cognitive enhancement and stress relief.

## Description

At BulkSupplements.com, we sell dietary supplement ranging from amino acids & protein powders, to herbal supplements, vitamins & minerals that may help your health and wellness journey. Find the perfect addition to your daily routine. Our wide selection gives you the freedom to create your own supplement regimen for your health goals. We offer variety of forms to help you find what works for your lifestyle, pick between powder, capsules & softgels. Our broad selection of dietary supplements are manufactured according to cGMP Standards to ensure the highest quality for manufacturing, packaging, labeling, and holding operations. Plus, we work with a third-party laboratory that test our each batches of our products at multiple stages during production, from raw material to finished products, to ensures compliance, standards, and consistency. With a variety of more than 500 supplements, we have something for everyone. Whether you're looking to maintain optimal health or just want some help crossing the finish line, we've got you covered.

Review: I just got my first order of Theanine from this specific seller (BulkSupplements) and am very happy with what I got. I use L-Theanine for mental function and I combine it with caffeine. I find it is useful in helping me focus and that with a larger dosage of caffeine (especially caffeine from guarana extract) that the effects are very pronounced. I can stay on track of tasks, sharply focus, and especially feel I work better with numbers. As all of our bodies are different and the same medication has different outcomes with different people, I cannot say if Theanine will be effective for you or not when used for this purpose. With that said, the User reviews here (and elsewhere) show that there is a pretty sizable chunk of people who have had luck using Theanine (combined with caffeine) for improved mental function. In terms of the science behind L-Theanine, the research is varied and not nearly as vast as many other supplements used for improved mental functioning. Some research has suggested Theanine has some degree of usefulness for anxiety, hyperactivity, sleep, the immune system, and mental performance. I use the word "some" because the results of clinical research has varied. Given how the same drug will affect different people in a different manner, this isn't all that surprising to see a limited number of controlled trials yield variable findings. With that said, User reviews show that Theanine has been extremely successful for some people (myself included) and so I think this is a supplement that holds potential value. Note that most of the studies which have found beneficial effects for reaction time and memory have also utilized caffeine alongside Theanine, as these two drugs seem to have synergistic effects in potentiating each other. I do not personally get any notable benefit from Theanine without simultaneous usage of caffeine. In terms of safety, I think it is always important to be aware of what goes in the body, and to be sure that what goes in our bodies come from trustable and respectable suppliers. Another Reviewer asked the question of 'how can one know they are getting real Theanine?' It's a fair question, and this is how I went about answering that question...In terms of 'knowing' if it is Theanine, I know because the difference for me is tremendous and very pronounced: for me, it takes the stimulant side of caffeine and somehow funnels it into mental sharpness. Caffeine alone does not do this, nor has any other supplement I have used for improved mental function. In terms of knowing if the product is safe and pure, I spent some time looking at different suppliers and reviews for their company and for the products they sell. I feel that this company, Bulk Supplements, has one of the best reputations on all of desertcart. Their general transaction feedback is excellent (like 99% positive), and virtually every product they sell has outstanding reviews. These thousands of stellar reviews made me feel that Bulk Supplements was a great choice to go with, and now having the product I can say I am very happy with what they sent me. So I am not sure if that is beneficial for you, but for me it was the deciding factor in buying Theanine from Bulk Supplements over other companies. I will certainly be purchasing from them in the future and I highly recommend them as a company to buy from. This Theanine (and other supplements in bulk) go along really well with a scale and a machine for making pills. As this comes in bulk powder, dosing quantity using a scoop is not the most reliable means and being able to weigh the dose is a much more consistent route. I purchased an AMW scale a few years ago for under ten bucks, so a decent-quality scale can be had for a very low price. I also own the Capsule Machine which I use to make capsules from bulk powder supplements. While there are tons of different makers producing those kinds of products, I figured I would mention those two as I purchased both on desertcart and can say first-hand that I am very happy with each. Having this scale and capsule machine makes using supplements much easier for me. So overall, I have had really good results with Theanine, and I am very happy with the Theanine that Bulk Supplements delivered on. While I cannot say if Theanine will be helpful for you or not, I can say that this is a Seller with good-quality Theanine in a pure form, and for a very reasonable price.
Review: After much research, I decided to try this for insomnia (from injury related pain) and also for Mild GAD. When dosed correctly it does the trick and I can sleep soundly minus the heavy-duty pain killers, and wake up refreshed in the morning. I also feel much calmer and more focused on the correct dose. The taste is not bad at all and I don't mind dumping it directly into my mouth. It is a little clumpy and doesn't mix xo well in water, though I just swish some more in the cup and rinse the last bits into my mouth. It mixes great into a smoothie. Minus one star because the dose is 1/16 tbsp, it doesn't come with a scoop (I would rather pay a few pennies more to have one- they are cheap!) and since the smallest standard measuring spoon is 1/8 tsp, I have been doing a LOT of guessing. I know when I get too much too because it makes me desperate for a nap, or I almost feel like my blood pressure is low (dizzy when I first stand up). Since this stuff actually DOES work, I would like more accurate dosage instructions!

## Features

- ✔️ Supplements for the Brain: Boost your productivity and stay on top of any activity with L-Theanine! This L-Theanine supplement helps make it easier to concentrate, focus, and stay alert - perfect for those who need to remain productive but don't want the taking of other supplements!
- ✔️ Boost your Immune Health!: Get ready to take your immune health to the next level! No matter what lifestyle you have, our L-Theanine powder, or L-Theanine 200mg, has something to offer everyone! This L Theanine supplement, an amino acids, is perfect for men and women looking for immune support, as well as overall wellness!*
- ✔️ Pure & No Unwanted Extras: Keep your health and wellness in check with out Theanine powder, in L Theanine 200mg, that's totally pure without any artificial flavors. Forget about added sugars and unwanted additives - our L-Theanine powder is naturally pure so you can relax worry-free. So go ahead – get back in control with our L-Theanine supplement!*
- ✔️ Unwind after a long day: If you’re not a fan of tea, no worries! Our L-Theanine powder, or L Theanine powder, can still be added to your everyday diet with ease. Incorporate our Theanine supplement, or L-Theanine 200mg, into smoothies, yogurt parfaits or other recipes for an extra boost of relaxation.* It's a simple and natural way to promote overall well-being in moments!*
- ⭐ High Quality: Get the most out of our L-Theanine supplement with pure & high quality. Our strict cGMP standards ensure superior manufacturing, packaging, labeling, and holding operations, while third-party testing at multiple stages ensures compliance and consistency.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00E7GESME |
| ASIN  | B00E7GESME |
| Additives | L-Theanine |
| Brand | BulkSupplements |
| Customer Reviews | 4.6 4.6 out of 5 stars (419) |
| Customer reviews | 4.6 4.6 out of 5 stars (419) |
| Date First Available | 11 June 2019 |
| Format | Powder |
| Is Discontinued By Manufacturer  | No |
| Item model number  | 9396157 |
| Manufacturer  | BULKSUPPLEMENTS.COM |
| Package Dimensions  | 35.1 x 22.61 x 4.5 cm; 1 kg |
| Units | 1 Kilograms |

## Product Details

- **Brand:** BulkSupplements
- **Diet type:** Gluten Free
- **Flavour:** Unflavored
- **Item form:** Powder
- **Item weight:** 1000 Grams
- **Primary supplement type:** L-Theanine
- **Product benefits:** Immune Support
- **Special ingredients:** L-Theanine
- **UPC:** 849720005267
- **Unit count:** 1 Kilograms

## Images

![BULKSUPPLEMENTS.COM L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free - 200mg of L Theanine Powder per Serving, 1kg (2.2 lbs) - Image 1](https://m.media-amazon.com/images/I/61DfWb6XLML.jpg)
![BULKSUPPLEMENTS.COM L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free - 200mg of L Theanine Powder per Serving, 1kg (2.2 lbs) - Image 2](https://m.media-amazon.com/images/I/71cz0QoH-rL.jpg)
![BULKSUPPLEMENTS.COM L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free - 200mg of L Theanine Powder per Serving, 1kg (2.2 lbs) - Image 3](https://m.media-amazon.com/images/I/71eZntbGyqL.jpg)
![BULKSUPPLEMENTS.COM L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free - 200mg of L Theanine Powder per Serving, 1kg (2.2 lbs) - Image 4](https://m.media-amazon.com/images/I/71+LxzpjqUL.jpg)
![BULKSUPPLEMENTS.COM L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free - 200mg of L Theanine Powder per Serving, 1kg (2.2 lbs) - Image 5](https://m.media-amazon.com/images/I/71UcJzeABVL.jpg)

## Questions & Answers

**Q: What is L-Theanine powder?**
A: L-Theanine is a naturally occurring amino acid found in tea leaves, known for its calming effects without drowsiness.

**Q: What are the benefits of the L-Theanine powder?**
A: L-Theanine powder promotes relaxation, reduces stress, and enhances focus.

**Q: How should I take L-Theanine powder?**
A: Take 200 milligrams with 8-12 oz of water once daily. Follow the dosage instructions on the label or consult your healthcare provider.

**Q: Are there any negative effects on taking L-Theanine powder?**
A: L-Theanine powder is generally safe. Possible negative symptoms may include mild indigestion. Consult a healthcare professional if you experience adverse reactions.

**Q: Can I take L-Theanine powder with other supplements?**
A: Yes, L-Theanine powder can be taken with most supplements. However, consult your healthcare provider for personalized advice, especially if on medication.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by Z***S on 22 October 2014*

I just got my first order of Theanine from this specific seller (BulkSupplements) and am very happy with what I got. I use L-Theanine for mental function and I combine it with caffeine. I find it is useful in helping me focus and that with a larger dosage of caffeine (especially caffeine from guarana extract) that the effects are very pronounced. I can stay on track of tasks, sharply focus, and especially feel I work better with numbers. As all of our bodies are different and the same medication has different outcomes with different people, I cannot say if Theanine will be effective for you or not when used for this purpose. With that said, the User reviews here (and elsewhere) show that there is a pretty sizable chunk of people who have had luck using Theanine (combined with caffeine) for improved mental function. In terms of the science behind L-Theanine, the research is varied and not nearly as vast as many other supplements used for improved mental functioning. Some research has suggested Theanine has some degree of usefulness for anxiety, hyperactivity, sleep, the immune system, and mental performance. I use the word "some" because the results of clinical research has varied. Given how the same drug will affect different people in a different manner, this isn't all that surprising to see a limited number of controlled trials yield variable findings. With that said, User reviews show that Theanine has been extremely successful for some people (myself included) and so I think this is a supplement that holds potential value. Note that most of the studies which have found beneficial effects for reaction time and memory have also utilized caffeine alongside Theanine, as these two drugs seem to have synergistic effects in potentiating each other. I do not personally get any notable benefit from Theanine without simultaneous usage of caffeine. In terms of safety, I think it is always important to be aware of what goes in the body, and to be sure that what goes in our bodies come from trustable and respectable suppliers. Another Reviewer asked the question of 'how can one know they are getting real Theanine?' It's a fair question, and this is how I went about answering that question...In terms of 'knowing' if it is Theanine, I know because the difference for me is tremendous and very pronounced: for me, it takes the stimulant side of caffeine and somehow funnels it into mental sharpness. Caffeine alone does not do this, nor has any other supplement I have used for improved mental function. In terms of knowing if the product is safe and pure, I spent some time looking at different suppliers and reviews for their company and for the products they sell. I feel that this company, Bulk Supplements, has one of the best reputations on all of Amazon. Their general transaction feedback is excellent (like 99% positive), and virtually every product they sell has outstanding reviews. These thousands of stellar reviews made me feel that Bulk Supplements was a great choice to go with, and now having the product I can say I am very happy with what they sent me. So I am not sure if that is beneficial for you, but for me it was the deciding factor in buying Theanine from Bulk Supplements over other companies. I will certainly be purchasing from them in the future and I highly recommend them as a company to buy from. This Theanine (and other supplements in bulk) go along really well with a scale and a machine for making pills. As this comes in bulk powder, dosing quantity using a scoop is not the most reliable means and being able to weigh the dose is a much more consistent route. I purchased an AMW scale a few years ago for under ten bucks, so a decent-quality scale can be had for a very low price. I also own the Capsule Machine which I use to make capsules from bulk powder supplements. While there are tons of different makers producing those kinds of products, I figured I would mention those two as I purchased both on Amazon and can say first-hand that I am very happy with each. Having this scale and capsule machine makes using supplements much easier for me. So overall, I have had really good results with Theanine, and I am very happy with the Theanine that Bulk Supplements delivered on. While I cannot say if Theanine will be helpful for you or not, I can say that this is a Seller with good-quality Theanine in a pure form, and for a very reasonable price.

### ⭐⭐⭐⭐ Review
*by S***E on 24 February 2014*

After much research, I decided to try this for insomnia (from injury related pain) and also for Mild GAD. When dosed correctly it does the trick and I can sleep soundly minus the heavy-duty pain killers, and wake up refreshed in the morning. I also feel much calmer and more focused on the correct dose. The taste is not bad at all and I don't mind dumping it directly into my mouth. It is a little clumpy and doesn't mix xo well in water, though I just swish some more in the cup and rinse the last bits into my mouth. It mixes great into a smoothie. Minus one star because the dose is 1/16 tbsp, it doesn't come with a scoop (I would rather pay a few pennies more to have one- they are cheap!) and since the smallest standard measuring spoon is 1/8 tsp, I have been doing a LOT of guessing. I know when I get too much too because it makes me desperate for a nap, or I almost feel like my blood pressure is low (dizzy when I first stand up). Since this stuff actually DOES work, I would like more accurate dosage instructions!

### ⭐⭐⭐⭐⭐ Review
*by C***N on 25 July 2014*

I purchased L-Theanine to go with my BulkSupplement Caffeine powder. At first, I was a little skeptical purchasing from a company I've never heard of, let alone in pure powder form. Needless to say my experience has been great. I will break down exactly how I use L-Theanine (as well as quantity) in conjunction with Caffeine powder. First, let me tell why I use those two supplements. I have had problems with concentration and anxiety most of my life and I was tired of being prescribed medications that came with a laundry list of negative side-effects. So, I started doing some research and came across this wonderful substance called L-Theanine. L-Theanine is an amino acid and a glutamic acid analog primarily found in tea (Camellia sinensis), and also in the basidiomycete mushroom Boletus badius and in guayusa. The L-enantiomer is the form which is found in tea and used as a supplement by humans. So, what does this mean? Well, in short Theanine has been studied for its potential ability to reduce mental and physical stress, improve cognition, and boost mood and cognitive performance in a synergistic manner with caffeine. That is why I purchased the caffeine powder, however that review is for another time. Consumption: I mix 100 milligrams (get yourself a milligram sensitive scale, especially if you are going to be toying around with the more dangerous compounds such as caffeine; seriously folks, this is not a toy and should be treated with respect) with my green tea in the morning for, in my opinion, the best effects. Results: About an hour (6:00 A.M.) after I drink my green tea/L-Theanine/Caffeine mix I start to get a very calm, yet focused feeling that lasts until lunch time (12:00 P.M.). At that time I make myself another green tea with 100 milligrams of L-Theanine and 100 milligrams of caffeine for my afternoon boost. Now, this lasts me until about 5:30-6:00 which is perfect because I am leaving work around that time. I would highly recommend this product in conjunction with the caffeine powered for those who have a hard time focusing, or would like to cut the side-effects of ADHD medicine while getting the (albeit 100% anecdotal) same results. Now remember, like anything else you put in your body please do your OWN research and take what I have written here as some useful information to help make a decision, because that's what it is.. a review to help you decide. Well, my Amazon friends I hope this helped you make a decision on this product. But for full disclosure I will let you know I am getting a free product for this review. Now, don't be swayed by this.. I would have purchased L-Theanine anyway, I'm just glad I did from BulkSupplements. The packaging is nice, the customer service is great and the price is unbeatable. In conclusion I am very happy with not only my L-Theanine, but with BulkSupplements. It's nice to see a company be so prompt and kind to their customers.

## Frequently Bought Together

- BulkSupplements.com L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free, 200mg per Serving, 1kg (2.2 lbs) (Pack of 1)
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- BulkSupplements.com Organic Lion's Mane Mushroom Extract Powder - Lions Mane Supplement Powder, Superfood for Well-Being - Vegan, 1g per Serving, 1kg (2.2 lbs) (Pack of 1)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-03*