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10 Best L Theanine Brands for Relaxation and Improved Sleep

If you're looking to chill out and improve your sleep, check out these 10 great brands of L Theanine.

Positive feelings from past customers

  • Reduces anxiety

  • Improves focus

  • Reduces stress

  • Helps with sleep

  • No side effects

L-Theanine is an amino acid found naturally in green tea. It is recognized as a “GRAS” (Generally Recognized As Safe) substance. L-Theanine may help promote relaxation and a sense of calm without causing drowsiness or loss of focus.


L-Theanine 200mg Super Value Size - 365 Vegetarian Capsules is a dietary supplement that may promote relaxation without drowsiness. It is found naturally in green tea and is made in the USA in a GMP NSF Certified Facility that is Kosher Certified.


The vast majority of users who have rated this product give it a 5-star rating, while only a small minority give it a 1-star rating.


According to user reviews, this product: - Is an effective supplement for promoting relaxation without drowsiness - Reduces stress and anxiety - Improves sleep quality - Increases focus and concentration - Boosts energy levels If you're looking for a supplement to help you relax and reduce stress, L-Theanine 200mg Super Value Size - 365 Vegetarian Capsules is a great option. This product is made from 100% pure L-Theanine, an amino acid found in green tea, and is non-GMO, gluten-free, and vegetarian. User reviews report that this supplement is effective in promoting relaxation without drowsiness, reducing stress and anxiety, improving sleep quality, and increasing focus and concentration. Additionally, some users report that this supplement also boosts energy levels.

$23.65 AT AMAZON

Positive feelings from past customers

  • Reduces anxiety levels

  • Allows for increased focus and concentration

  • Helps with improved sleep

  • Reduces frequency of trips to the bathroom

  • Gives coffee a more enjoyable taste

Negative feelings from past customers

  • It only lasts in my system a few hours

The Sports Research Double Strength ‘Suntheanine’ L-Theanine with Organic Coconut Oil is a health and household supplement that provides double the amount of L-Theanine, an amino acid that is known for its calming and relaxing effects. This product also contains organic coconut oil, which has a variety of health benefits, including reducing inflammation, boosting brain health, and aiding in weight loss.


Sports Research Double Strength 'Suntheanine' L-Theanine with Organic Coconut Oil is a health supplement that is designed to help with relaxation and focus. The product is made with premium quality ingredients and is certified non-GMO and free of soy, gluten, artificial colors, Hexane, Stearates, and Titanium Dioxide. The product is easy to use and can be taken with or without food.


The vast majority of users who have rated the product give it a five-star rating, while only a small minority give it a one-star rating. This indicates that users generally think highly of the product.


According to user reviews, Sports Research Double Strength 'Suntheanine' L-Theanine with Organic Coconut Oil is an effective supplement for promoting alertness and relaxation without drowsiness. The capsules are easy to take and the results are noticeable within a short period of time. Many users report feeling more calm and focused after taking this supplement, and some even say it has helped them with anxiety and stress relief. There are no major side effects reported, although a few users mention feeling a bit jittery or anxious after taking the supplement on an empty stomach. Overall, this seems to be a safe and effective way to improve focus and concentration, and to promote relaxation without drowsiness.

$19.95 AT AMAZON

Positive feelings from past customers

  • Reduces stress

  • Improves sleep

  • Helps with anxiety

  • Calms without making you groggy

  • Helps you focus

Negative feelings from past customers

  • It may not work for everyone

  • It can take a while to work

, L-Theanine Pure Encapsulations L-Theanine is an amino acid supplement that can promote relaxation.* L-Theanine is a naturally occurring amino acid found in green tea leaves. It is known for its ability to promote relaxation and reduce stress without causing drowsiness. Pure Encapsulations L-Theanine is free of GMOs, gluten, and soy. It is also vegan and hypoallergenic.


Pure Encapsulations L-Theanine is an amino acid supplement derived from green tea that supports relaxation without causing drowsiness. It may also ease occasional nervous tension and irritability and help moderate occasional stress. In addition, l-theanine has been reported to moderate the effects of caffeine on the central nervous system.* Our supplements are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then carefully manufactured and tested to verify their potency and purity. Pure Encapsulations products are also FREE FROM wheat, eggs, tree nuts & peanuts, gluten, artificial colors, flavors & sweeteners, coatings and shellacs, GMOs, and unnecessary binders, fillers & preservatives.


The sentiment is overwhelmingly positive, with 85% of users giving the product a five-star rating. Only 2% of users gave it a one-star rating.


According to user reviews, this product: -Is an amino acid supplement for relaxation -Is made by Pure Encapsulations -Is in capsule form -Contains 60 capsules -Is a pack of 1 User reviews also state that this product: -Is effective -Has helped with anxiety -Is easy to take -Is affordable Based on these reviews, this product appears to be an effective, affordable amino acid supplement for relaxation that is easy to take.

$54.8 AT AMAZON

Positive feelings from past customers

  • Calms down

  • Helps with sleep

  • Good for anxiety and neuroprotection

  • Gives good night sleep

  • No more nightmares

Negative feelings from past customers

  • Cheaper brands may not work as well

  • May cause weird dreams or no dreams

  • Can be shy on dosage

, L-Theanine Supplements Looking for a non-GMO and gluten-free L-Theanine supplement? Look no further than Nutricost L-Theanine 200mg! This double strength formula provides 120 capsules of pure L-Theanine, an amino acid found naturally in tea leaves. L-Theanine has been shown to promote relaxation without drowsiness, and may also improve learning and memory. So why not give Nutricost L-Theanine 200mg a try today?


Nutricost L-Theanine 200mg comes with 120 capsules in each bottle. It is a double strength product with 200mg of L-Theanine per serving. There are 120 servings in each bottle. The capsules are easy to take and the product is manufactured in a GMP Compliant, FDA Registered Facility.


The majority of users who rated the product gave it a five-star rating, while only a small minority gave it a one-star rating. This indicates that overall, users were satisfied with the product.


According to user reviews, the Nutricost L-Theanine 200mg is an effective supplement that helps to promote relaxation without drowsiness. It is also non-GMO and gluten-free, making it a safe and healthy option for those with dietary restrictions.

$11.95 AT AMAZON

Positive feelings from past customers

  • It helps take the edge off

  • It helps during bouts of high stress and anxiety

  • It doesn't interfere with other meds

  • It helps during a lot of stress

  • It is a reputable company

Negative feelings from past customers

  • The potency drops in half after a month

  • Non-Suntheanine brands are more effective and cheaper

If you're looking for a supplement to promote a relaxed state, look no further than Integrative Therapeutics L-Theanine 200 mg. This product is derived from green tea leaves and helps to support a healthy stress response. L-Theanine also promotes concentration and alertness while helping to reduce anxiety.


Integrative Therapeutics L-Theanine 200 mg is an amino acid supplement that promotes relaxation without diminishing daytime alertness.* L-Theanine also supports a healthy stress response.* This supplement is soy free, dairy free, and does not contain wheat, corn, artificial colors, flavors, or preservatives.


The vast majority of users seem to be happy with the product, giving it a five star rating. There are, however, a significant number of one star ratings, which could indicate some issues with the product.


According to user reviews, Integrative Therapeutics L-Theanine 200 mg is an effective supplement that promotes a relaxed state and healthy stress response. It is vegan and gluten free, and comes in a 60 capsule standard packaging.

$21.5 AT AMAZON

Positive feelings from past customers

  • Helps with anxiety

  • No flavor

  • Improves productivity and focus

  • Nicely sealed

  • Calms anger and frustration

Negative feelings from past customers

  • The product may be fake

  • The product is not very convenient to use

. Vegetarian/Vegan Product. NOW Supplements L-Theanine is a great way to promote relaxation without the drowsiness or negative side effects associated with other calming agents.* L-Theanine also supports healthy cardiovascular function through this relaxing effect.* This product has twice the L-theanine (200 mg per capsules) as in our regular strength product (100 mg per capsule).


NOW Supplements, L-Theanine 200 mg with Inositol, Stress Management*, 120 is a health supplement that promotes relaxation without the drowsiness or negative side effects associated with other calming agents.* The vegan, kosher, non-GMO supplement is also healthy for vascular function* and includes inositol, a member of the B-vitamin family that is essential for brain and nervous system health.* The GMP quality assured product is packaged in the USA by a family owned and operated company since 1968.


Overall, users seem to be very pleased with the product, giving it an 80% five-star rating. There are very few one-star reviews, at just 2%.


According to user reviews, NOW Supplements, L-Theanine 200 mg with Inositol, Stress Management*, 120 Veg Capsules 120.0 Servings (Pack of 1) is an effective product for managing stress. The capsules are easy to take and the results are noticeable within a few days. Users report feeling more relaxed and less anxious after taking this supplement.

$22.62 AT AMAZON

Positive feelings from past customers

  • Feeling much relief

  • Safe and effective

  • Sleep much better

  • Quality product

  • No longer experience that tension

Negative feelings from past customers

  • Expensive

  • Needs to be taken on an empty stomach

, L-Theanine If you're looking for a supplement to help support a healthy lifestyle, Thorne Theanine is a great option. With 200mg of L-Theanine per serving, it's a potent way to get your daily dose of this important amino acid. L-Theanine has been shown to promote relaxation without causing drowsiness, making it a perfect choice for those who want to stay alert and focused throughout the day.


Thorne Theanine is a supplement that contains 200mg of L-Theanine. L-Theanine is an amino acid that is found in green tea. It promotes relaxation, focus, and memory by enhancing alpha-wave production in the brain. L-Theanine also enhances GABA production in the brain. GABA is a brain chemical that acts like a brake during times of runaway stress. Thorne Theanine is also free from gluten, eggs, tree nuts, peanuts, soy, dairy, shellfish, and fish.


The sentiment is overwhelmingly positive, with 80% of reviewers giving the game 5 stars. Just 3% of reviewers give it 1 star.


According to user reviews, Thorne Theanine is an effective supplement that supports a healthy stress response, relaxation, and focus. It increases brain alpha-wave production and is well-tolerated by most users. Some reviewers noted that it took a few days or weeks for the full effects to be felt, but overall they were very satisfied with the product.

$60 AT AMAZON

Positive feelings from past customers

  • It works

  • Great flavor

  • Helps anxiety

  • So convenient

  • No water needed

Negative feelings from past customers

  • They only come in 250 mg size

  • The tablets are quite large to be sublingual

The EZ Melts L-Theanine supplement is a quick-dissolving tablet that provides 200 mg of theanine per serving. Theanine is an amino acid found naturally in tea leaves and is known for its calming and relaxing effects. This vegan supplement is sugar-free and comes in a great-tasting natural orange flavor. EZ Melts L-Theanine is manufactured in a registered, USDA-approved facility and is compliant with current Good Manufacturing Practices (cGMPs).


EZ Melts L-Theanine is a supplement that supports healthy stress response, promotes relaxation, and comes in the form of 60 fast-melting tablets with a "Sweet Cherry" flavor. The supplement is made in the USA with zero sugar, vegan ingredients, gluten-free, non-GMO, natural flavors, natural sweeteners, and natural colors.


The vast majority of users who have reviewed this product give it high marks, with only a small percentage giving it poor reviews.


According to user reviews, EZ Melts L-Theanine is an effective supplement that helps to improve mood and focus. It is vegan, zero sugar, and has a natural cherry flavor. It is also said to dissolve quickly and be easy to take. Overall, users recommend this product as a helpful addition to their daily routine.

$21.99 AT AMAZON

Positive feelings from past customers

  • Reduced stress

  • Improved memory

  • Helps with anxiety

  • Helps with ADHD

  • Prevents panic attacks

Negative feelings from past customers

  • The pills have a fishy smell

  • They don't seem to have a steady dosage

  • They are more expensive than other brands

combining the latest science with traditional wisdom, NOW Foods has been delivering natural products that empower people to lead healthier lives since 1968. NOW Supplements L-Theanine with Decaf Green Tea is a unique supplement that helps promote relaxation while maintaining alertness. L-Theanine is a naturally occurring amino acid found in the tea plant, and it has been shown to support healthy cognitive function. This supplement also supports healthy vascular function through its relaxing effect.


Now Supplements L-Theanine with Decaf Green Tea is a stress management supplement that also promotes relaxation while maintaining alertness and healthy cognitive function. L-Theanine may also support healthy vascular function through this relaxing effect.


The sentiment is overwhelmingly positive, with 78% of users giving the product a five-star rating. Only 2% of users gave it a one-star rating.


According to user reviews, NOW Supplements, L-Theanine 100 mg with Decaf Green Tea, Stress Management*, 90 Veg Capsules is an effective supplement for managing stress levels. The capsules are easy to take and provide the user with a sense of calmness and relaxation. The product is also affordable and has no known side effects.

$13.91 AT AMAZON

Positive feelings from past customers

  • Reduces stress and anxiety

  • Helps with sleep

  • Improves focus and clarity

  • Safe at high doses

  • Works well

Negative feelings from past customers

  • May make you jittery

  • Not sure if it’s working

  • Subtle, not a knockout med.

  • Can take the "natural" place of rx meds.

Doctor's Best L-Theanine Contains Suntheanine is a dietary supplement that helps reduce stress and sleep. Theanine, the main ingredient in this product, is an amino acid found in green tea leaves. This particular brand of theanine has been extensively studied for safety and efficacy. L-theanine crosses the blood-brain barrier and has been shown to have a calming effect on the brain. This supplement is ideal for those who experience stress or difficulty sleeping.


Doctor's Best L-Theanine contains Suntheanine, a pure form of L-Theanine on the market produced via a patented process that mimics the natural process in green tea leaves. L-Theanine helps promote a healthy mood and a restful relaxed state while maintaining daytime alertness. L-Theanine is a powerful Amino Acid that enhances cognitive performance and alertness. L-Theanine may help improve quality of sleep, learning performance, concentration and help support the immune system. L-Theanine may also help reduce the negative effects of caffeine. Suntheanine may normalize the body’s stress response and condition the body to handle stressful situations better.


Overall, users seem to be pleased with the product, giving it a 76% five-star rating. There are a small number of one-star reviews (3%), but the majority of users are happy with their purchase.


According to user reviews, this product is helpful in reducing stress and promoting sleep. It is non-GMO, gluten-free, and vegan. It comes in a 90 count bottle and each pill contains 150mg of L-Theanine.

$18.99 AT AMAZON

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