---
product_id: 3534093
title: "com L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free, 200mg per Serving, 100g (3.5 oz) (Pack of 1)"
brand: "bulksupplements"
price: "€ 32.80"
currency: EUR
in_stock: true
reviews_count: 7
category: "Bulk Supplements"
url: https://www.desertcart.hr/products/3534093-com-l-theanine-powder-l-theanine-supplement-l-theanine-200mg
store_origin: HR
region: Croatia
---

# 100% gluten-free & allergen-free cGMP certified, third-party tested 200mg pure L-Theanine per serving com L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free, 200mg per Serving, 100g (3.5 oz) (Pack of 1)

**Brand:** bulksupplements
**Price:** € 32.80
**Availability:** ✅ In Stock

## Summary

> 🧠 Elevate your calm, sharpen your focus — the smart supplement for the modern mind.

## Quick Answers

- **What is this?** com L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free, 200mg per Serving, 100g (3.5 oz) (Pack of 1) by bulksupplements
- **How much does it cost?** € 32.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/3534093-com-l-theanine-powder-l-theanine-supplement-l-theanine-200mg)

## 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

- • **Trust You Can Taste:** Produced in cGMP-certified facilities with rigorous third-party testing for unmatched purity and consistency.
- • **Synergize Your Focus:** Pairs seamlessly with caffeine to enhance mental clarity and sustained productivity—ditch the jitters, keep the edge.
- • **Clean & Clear Formula:** Gluten-free, allergen-free, and unflavored—perfectly adaptable to any health routine or beverage.
- • **Precision-Powered Calm:** Each 200mg serving delivers pure, unflavored L-Theanine for focused relaxation without distractions.
- • **Bulk Value, Premium Quality:** Get 100g of premium-grade L-Theanine powder at a price that makes upgrading your wellness routine effortless.

## Overview

BulkSupplements.com L-Theanine Powder offers a pure, gluten-free 200mg dose of L-Theanine per serving, designed to support mental focus, relaxation, and overall well-being. Manufactured in cGMP-certified facilities and third-party tested, this unflavored powder integrates effortlessly into any lifestyle or supplement stack. Ideal for professionals seeking a natural, clean way to enhance cognitive performance and reduce stress, especially when combined with caffeine.

## Description

Buy BulkSupplements.com L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free, 200mg per Serving, 100g (3.5 oz) (Pack of 1) on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Theanine (+caffeine) helps me tremendously with mental performance -- This is good-quality (+pure) theanine from a great Seller! - 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: Good quality L-Theanine! - BulkSupplements has done us a great favor by offering us L-Theanine in bulk form. This is usually a rather hard to find and expensive supplement. This is the cheapest I've seen it. It is pure and it is the real deal and packaged in the U.S., so you know you're not getting fake stuff from China. L-Theanine is the stuff in tea that makes you feel calm and relaxed. I was once placed temporarily on Xanax for anxiety attacks that had no explanation. Then I looked up the side-effects of Xanax and found out how addictive that stuff was and how it has brought so many onto a downward spiral of misery. I started looking for more-friendly, all-natural alternatives, and that's when a web search revealed L-Theanine as an alternative to me. I didn't stop the Xanax cold turkey, but within two weeks, I was able to titrate and wean myself off of it entirely and replace it with L-Theanine. I then slowly reduced the amount of L-Theanine I was taking down to 100 mg. I now only take it because it makes me feel better during generally stressful situations, not because I need it. This a very powerful amino acid. It can also take the edge off of caffieine if you use that as a smart drug. L-Theanine + Caffeine = a feeling of clear focus without the crash or jitteryness. No daily recommended value has been established, but I would suggest taking 200 mg once to twice daily (400 mg max) and starting out from there. I've found that if I go over 400mg, I start to feel really drowsy and sluggish. Each person is different, so you may have to vary this amount for you. Also, if you want lucid dreams or have trouble sleeping, this is an excellent addition to melatonin. L-Theanine is for the most part non-toxic. There are no documented cases of anyone overdosing on it, but to be on the safe side, handle it like care like any other supplement. The package says on it, "Do not use if you are taking blood pressure medication." This does not necessarily mean that you can't use it. I am currently taking blood pressure medication for high blood pressure and I am doing just fine on L-Theanine. I have also never heard of anyone one high blood pressure medication having problems with L-Theanine. I believe this statement is just a warning so that the company can protect itself from liability in the rare event that someone does have a reaction. If you want to be 100% safe, talk to your doctor first. But, remember, this is pretty much a refined tea leaf-type extract without the caffeine stuff. If you drink lots of green tea, then you probably are already getting lots of L-Theanine in your diet.

## Features

- Elevate Your General Health and Well-being: Tailored to support your overall health, our L-Theanine powder, in L-Theanine 200mg, is the perfect addition to any lifestyle. Packed with essential nutrients, they're designed to boost your general well-being, keeping you feeling your best day after day.
- Versatility for all Lifestyles: Whether you're someone simply looking to stay healthy, our L-Theanine supplement, in Theanine powder, fits seamlessly into your regimen, adaptable to a wide range of dietary needs and preferences.
- Optimized in every Serving: Our L-Theanine 200mg powder is unflavored and free of unnecessary allergens, offering you a high-quality product that easily integrates with other supplements or your preferred shake or beverage.
- Transparent and Trustworthy: Experience the confidence that comes with choosing a supplement that not only meets rigorous third-party testing but also upholds the principles of clarity and integrity in its formulation and production.
- Commitment to Excellence: Produced in a facility compliant with strict cGMP standards, our L-Theanine powder, or Theanine 200mg supplement, stands as a testament to our dedication to quality. You can trust in our product's consistency and excellence, batch after batch.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B00E7GESLA |
| Best Sellers Rank | #14,122 in Health & Household ( See Top 100 in Health & Household ) #359 in Blended Vitamin & Mineral Supplements #504 in Amino Acid Nutritional Supplements |
| Customer Reviews | 4.5 4.5 out of 5 stars (3,366) |
| Date First Available  | July 28, 2013 |
| Department  | men, women |
| Is Discontinued By Manufacturer  | No |
| Manufacturer  | BULKSUPPLEMENTS.COM |
| Product Dimensions  | 5.1 x 8 x 0.5 inches; 0.81 ounces |

## Product Details

- **Brand:** BulkSupplements
- **Diet Type:** Gluten Free
- **Flavor:** Unflavored
- **Item Form:** Powder
- **Item Weight:** 0.02 Kilograms
- **Item dimensions L x W x H:** 5.1 x 8 x 0.5 inches
- **Primary Supplement Type:** L-Theanine
- **Product Benefits:** Immune Support
- **Special Ingredients:** L-Theanine
- **Unit Count:** 3.5 Ounce

## Images

![com L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free, 200mg per Serving, 100g (3.5 oz) (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/61zl4p28-SL.jpg)

## Available Options

This product comes in different **Size, Flavor** options.

## 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

### ⭐⭐⭐⭐⭐ Theanine (+caffeine) helps me tremendously with mental performance -- This is good-quality (+pure) theanine from a great Seller!
*by Z***S on October 22, 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.

### ⭐⭐⭐⭐⭐ Good quality L-Theanine!
*by E***N on January 5, 2014*

BulkSupplements has done us a great favor by offering us L-Theanine in bulk form. This is usually a rather hard to find and expensive supplement. This is the cheapest I've seen it. It is pure and it is the real deal and packaged in the U.S., so you know you're not getting fake stuff from China. L-Theanine is the stuff in tea that makes you feel calm and relaxed. I was once placed temporarily on Xanax for anxiety attacks that had no explanation. Then I looked up the side-effects of Xanax and found out how addictive that stuff was and how it has brought so many onto a downward spiral of misery. I started looking for more-friendly, all-natural alternatives, and that's when a web search revealed L-Theanine as an alternative to me. I didn't stop the Xanax cold turkey, but within two weeks, I was able to titrate and wean myself off of it entirely and replace it with L-Theanine. I then slowly reduced the amount of L-Theanine I was taking down to 100 mg. I now only take it because it makes me feel better during generally stressful situations, not because I need it. This a very powerful amino acid. It can also take the edge off of caffieine if you use that as a smart drug. L-Theanine + Caffeine = a feeling of clear focus without the crash or jitteryness. No daily recommended value has been established, but I would suggest taking 200 mg once to twice daily (400 mg max) and starting out from there. I've found that if I go over 400mg, I start to feel really drowsy and sluggish. Each person is different, so you may have to vary this amount for you. Also, if you want lucid dreams or have trouble sleeping, this is an excellent addition to melatonin. L-Theanine is for the most part non-toxic. There are no documented cases of anyone overdosing on it, but to be on the safe side, handle it like care like any other supplement. The package says on it, "Do not use if you are taking blood pressure medication." This does not necessarily mean that you can't use it. I am currently taking blood pressure medication for high blood pressure and I am doing just fine on L-Theanine. I have also never heard of anyone one high blood pressure medication having problems with L-Theanine. I believe this statement is just a warning so that the company can protect itself from liability in the rare event that someone does have a reaction. If you want to be 100% safe, talk to your doctor first. But, remember, this is pretty much a refined tea leaf-type extract without the caffeine stuff. If you drink lots of green tea, then you probably are already getting lots of L-Theanine in your diet.

### ⭐⭐⭐⭐⭐ Quality an best prices
*by C***Y on February 9, 2026*

Quality products great pricing 3rd party tested on all their products

## Frequently Bought Together

- BulkSupplements.com L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free, 200mg per Serving, 100g (3.5 oz) (Pack of 1)
- BulkSupplements.com Creatine Monohydrate Powder - Creatine Supplement, Micronized Creatine, Creatine Powder - Unflavored & Gluten Free, 5g (5000mg) per Servings, 500g (1.1 lbs) (Pack of 1)
- BulkSupplements.com Alpha GPC Powder - Choline Supplements, Alpha GPC 300mg - Acetylcholine Supplements, Unflavored & Gluten Free, 600mg per Serving, 100g (3.5 oz) (Pack of 1)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hr/products/3534093-com-l-theanine-powder-l-theanine-supplement-l-theanine-200mg](https://www.desertcart.hr/products/3534093-com-l-theanine-powder-l-theanine-supplement-l-theanine-200mg)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-23*