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Top 12 Best L-Theanine Supplements

UpdatedApril 30, 2024

L-theanine is a popular supplement that is often taken for its ability to promote relaxation and reduce stress. It is an amino acid that is found naturally in tea leaves, and is often taken in supplement form to achieve higher doses than what can be obtained through drinking tea.

When it comes to choosing the best L-theanine supplement, there are a few key factors to consider. First, it's important to look for a supplement that is made from high-quality ingredients and is free from fillers and additives. Additionally, dosage and bioavailability are important factors to consider, as these can greatly affect the effectiveness of the supplement.

After researching and testing various L-theanine supplements, we have identified the top products on the market that provide the highest quality and most effective doses of L-theanine. Whether you are looking for a supplement to help you relax and reduce stress, or to improve your focus and concentration, our top picks have got you covered.

Top 3 Best L-Theanine Supplements

  1. Momentous L-Theanine Capsules, 60 Servings
  2. Nutricost L-Theanine
  3. Sports Research L-Theanine Supplement

We've researched and tested a variety of L-Theanine supplements to bring you the best options on the market. L-Theanine is an amino acid that is commonly found in tea leaves, and it has been shown to have a calming effect on the mind and body. Whether you're looking to reduce stress, improve focus, or simply relax, L-Theanine supplements can be a great addition to your daily routine. Below are our top picks for the best L-Theanine supplements available.

Momentous L-Theanine Capsules, 60 Servings

The Editor's Choice

Discover the Sports Research Double Strength L-Theanine Supplement – a caffeine-free focus booster with a calming twist. Enjoy heightened alertness and relaxation, thanks to the patented Suntheanine formula. While it's convenient and made with premium ingredients, results may vary. Still, it's a top pick for a natural focus and alertness boost.

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We highly recommend the Sports Research Double Strength L-Theanine Supplement for those looking for a natural way to stay alert and focused without the jitters or crash of caffeine.

Pros

  • Provides feelings of relaxation, calm, focus, and alertness
  • Double the amount of L-theanine green tea extract in a convenient max-strength formula
  • Formulated with patented and clinically researched Suntheanine

Cons

  • Some users may not notice a significant difference in alertness and focus
  • May not be suitable for those with severe anxiety or sleep disorders
  • The softgels may melt together in hot temperatures

We found that the Sports Research Double Strength L-Theanine Supplement provided a noticeable increase in focus and alertness without the unpleasant side effects of caffeine. The patented Suntheanine formula also helped us feel more relaxed and calm throughout the day.

The double-strength formula was convenient and easy to take, and we appreciated that the supplement was made with premium, non-GMO ingredients like organic coconut oil. However, some users may not notice a significant difference in alertness and focus, and the softgels may melt together in hot temperatures.

Overall, we believe that the Sports Research Double Strength L-Theanine Supplement is a great choice for those looking for a natural way to boost their focus and stay alert throughout the day.

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If you're looking for a high-quality L-Theanine supplement, Nutricost has got you covered. We highly recommend this product for its effectiveness and quality.

Pros

  • Double strength formula for maximum effectiveness
  • Easy to take capsules
  • Non-GMO and gluten-free

Cons

  • Some people may experience mild side effects such as headaches or dizziness
  • May take some time to notice the full effects
  • Relatively expensive compared to other L-Theanine supplements

We've been using Nutricost L-Theanine for a few weeks now, and we've noticed a significant improvement in our overall mood and stress levels. The double-strength formula ensures that we're getting the maximum benefits from each capsule, and the easy-to-swallow capsules make it easy to take on a daily basis.

One of the things we really appreciate about this product is that it's non-GMO and gluten-free. This is important for those who have dietary restrictions or who are looking for a more natural supplement.

While we haven't experienced any negative side effects ourselves, we do know that some people may experience mild side effects such as headaches or dizziness. Additionally, it may take some time to notice the full effects of the supplement, so it's important to be patient and consistent with your daily dosage.

Overall, we highly recommend Nutricost L-Theanine for anyone looking for an effective and high-quality supplement to help reduce stress and improve overall mood.

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We highly recommend the Sports Research L-Theanine Supplement for those looking for a natural way to stay alert and focused without the jitters or crash of caffeine.

Pros:

  • Promotes relaxation without drowsiness
  • Enhances focus and mental clarity
  • Easy to incorporate into a daily routine

Cons:

  • Might not be suitable for everyone:
  • Results may vary
  • Can be a bit pricey

This little gem has been a lifesaver for us lately, especially during those busy days when stress levels are through the roof. With its unique blend of L-Theanine, a natural amino acid found in tea leaves, this supplement provides a sense of calm and relaxation without making us feel sluggish or tired. It's like finding a zen oasis in the middle of a chaotic day.

We've been taking it for a few weeks now, and noticed a significant difference in our ability to stay focused and composed, even in the face of deadlines and endless to-do lists. It's like having a little helper in our corner, keeping us cool, calm, and collected no matter what life throws our way.

Order Z Factor Now!

If you're on the hunt for a reliable, drug-free sleep supplement, then Z Factor is a product that warrants your attention. Crafted with utmost care and precision, Z Factor offers a holistic solution to your sleep troubles, ensuring you wake up refreshed and rejuvenated each morning.

Pros

  • Promotes restful and uninterrupted sleep without the risk of dependency
  • Formulated with natural ingredients to induce a gentle and calming effect
  • Supports overall sleep quality, aiding in the regulation of sleep-wake cycles

Cons

  • May not be suitable for individuals with specific allergies or sensitivities
  • Results may vary among users, with some requiring time to experience noticeable improvements

Z Factor distinguishes itself with its commitment to providing a non-addictive solution to sleep woes. By steering clear of pharmaceuticals, it eliminates the risk of dependency, offering peace of mind along with a good night's sleep. Crafted with a blend of natural ingredients, Z Factor gently lulls you into a state of relaxation, paving the way for deep and restorative slumber.

One of the key advantages of Z Factor is its ability to enhance overall sleep quality. By supporting the body's natural sleep-wake cycles, it helps establish a healthy rhythm, ensuring you wake up feeling invigorated and ready to tackle the day ahead.

However, it's essential to consider individual sensitivities and allergies, as some ingredients may not be suitable for everyone. Additionally, while many users report immediate benefits, others may require consistent use over time to fully experience the supplement's effects.

In essence, if you're seeking a safe and effective remedy for sleep troubles, Z Factor stands as a promising contender, offering a pathway to tranquil nights and energized mornings.

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If you're looking for a natural way to promote relaxation and calmness without drowsiness, Nature's Trove L-Theanine Supplement might be the right choice for you.

Pros

  • Restores a sense of calmness
  • Promotes relaxation without drowsiness
  • Found naturally in green tea

Cons

  • Might not work for everyone
  • Some people might experience mild side effects
  • You need to take it regularly to see results

We've been using this supplement for a while now, and we're happy with the results. It's a natural way to reduce stress and anxiety without feeling drowsy or losing focus. We also appreciate the fact that it's made with natural ingredients and manufactured in the USA in a GMP NSF Certified Facility.

One of the things we like about this supplement is that it's easy to take. The capsules are vegetarian, and you can take them with or without food. We usually take one capsule in the morning and another one in the evening, but you can adjust the dosage according to your needs.

Another thing we like about this supplement is that it doesn't have any artificial flavors, colors, or preservatives. It's also kosher certified, which might be important for some people.

However, we should mention that this supplement might not work for everyone. Some people might experience mild side effects such as headaches or stomach discomfort. Also, you need to take it regularly to see results, so it might not be suitable for people who are looking for a quick fix.

Overall, we think that Nature's Trove L-Theanine Supplement is a good choice for people who are looking for a natural way to reduce stress and anxiety. It's a well-made supplement that's easy to take, and it might help you restore your sense of calmness and relaxation.

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If you are looking for a natural supplement to promote relaxation and support healthy cardiovascular function, NOW Supplements, L-Theanine 200 mg with Inositol is worth considering.

Pros

  • Promotes relaxation without drowsiness
  • Supports healthy cardiovascular function
  • Includes Inositol, essential for brain and nervous system health

Cons

  • Exposure to heat or sunlight may lead to melting/damage of product
  • May not work for everyone
  • Capsules may be too large for some people to swallow

We have been using NOW Supplements, L-Theanine 200 mg with Inositol for a few weeks and have noticed a difference in our stress levels. It promotes relaxation without making us feel drowsy, which is great for those who need to stay alert and focused during the day. We also appreciate that it includes Inositol, which is essential for brain and nervous system health.

One thing to note is that exposure to heat or sunlight may lead to melting/damage of the product, so it's important to store it properly. Additionally, while it works well for us, it may not work for everyone. Some people may also find the capsules too large to swallow comfortably.

Overall, if you are looking for a natural supplement to help manage stress and support healthy cardiovascular function, NOW Supplements, L-Theanine 200 mg with Inositol is a good option to consider.

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We highly recommend Doctor's Best L-Theanine for anyone looking for a natural way to reduce stress and improve sleep quality.

Pros

  • Doctor's Best L-Theanine contains Suntheanine, a pure form of L-Theanine that is 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 supports relaxation and a sense of calm without causing drowsiness or loss of focus.

Cons

  • Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery.
  • During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.
  • The effects of L-Theanine may vary from person to person.

We have been using Doctor's Best L-Theanine for a few weeks now and have noticed a significant improvement in our ability to manage stress and anxiety. The supplement also helps us relax and fall asleep faster at night without feeling groggy in the morning.

The product is easy to take and does not leave any aftertaste. We appreciate that it is non-GMO and gluten-free, making it suitable for a wide range of dietary needs. The fact that it is vegan-friendly is also a plus.

Overall, we highly recommend Doctor's Best L-Theanine to anyone looking for a natural way to reduce stress and improve sleep quality.

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We highly recommend Pure Encapsulations L-Theanine for anyone looking for an amino acid supplement that supports relaxation without causing drowsiness.

Pros

  • Supports stress moderation
  • Supports nervous system
  • High-quality ingredients

Cons

  • May be expensive for some
  • Capsules may be difficult to swallow for some
  • May not work for everyone

Pure Encapsulations L-Theanine is an excellent supplement to help moderate stress and occasional nervous tension. It can also support moderation of the effects of caffeine on the central nervous system. The high-quality formulation uses pure ingredients and is free from unnecessary additives and common allergens.

While the price may be a bit steep for some, the quality of the product is worth it. Some users may find the capsules difficult to swallow, but this is a minor issue. Additionally, while the supplement works for most people, it may not work for everyone.

Overall, we believe that Pure Encapsulations L-Theanine is a great product that can help you relax and reduce stress.

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If you're looking for a supplement that can help you relax without feeling drowsy, Double Wood Supplements L-Theanine Supplement might be just what you need.

Pros

  • Third party tested and manufactured in the USA
  • Supports relaxation without causing drowsiness
  • Non-GMO and gluten-free

Cons

  • Might not work for everyone
  • Takes time to see results
  • Some people might not like taking capsules

We've been using this L-Theanine supplement for a few weeks now, and we're impressed with the results. We find that it helps us relax without making us feel sleepy, which is great for those times when we need to stay sharp and focused.

One of the things we like about this supplement is that it's third party tested and manufactured in the USA. This gives us peace of mind knowing that we're getting a high-quality product that's safe and effective.

Another thing we appreciate about this supplement is that it's non-GMO and gluten-free. This makes it a great choice for people with dietary restrictions or who are looking for a supplement that's free from harmful additives.

While this supplement might not work for everyone, we think it's worth giving it a try if you're looking for a natural way to relax and unwind. Just be aware that it might take some time to see results, so don't expect instant gratification.

Overall, we're happy with our experience with Double Wood Supplements L-Theanine Supplement and would recommend it to others looking for a natural way to support relaxation and sleep.

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We highly recommend Nature Made L-Theanine Chewable Tablets for those looking for a fast-acting stress relief supplement that doesn't cause drowsiness.

Pros

  • Works within 30 minutes to help relax the mind without causing drowsiness
  • Delicious tropical fruit flavor
  • 100% drug free and suitable for vegetarians

Cons

  • May not work for everyone
  • Some users may not like the taste
  • Chewable tablets may not be preferred by some users

Nature Made L-Theanine Chewable Tablets are a great option for those who need quick stress relief. The tropical fruit flavor makes it enjoyable to take, and the chewable form makes it easy to consume. We found that it worked within 30 minutes to help us relax without feeling drowsy.

The fact that it's 100% drug free and suitable for vegetarians is a plus. However, it may not work for everyone. Some users may not like the taste, and the chewable form may not be preferred by some users.

Overall, we think Nature Made L-Theanine Chewable Tablets are a great option for those looking for a fast-acting stress relief supplement.

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We highly recommend the Superior Labs L-Theanine supplement for those looking for a natural way to relax and improve their mood.

Pros

  • Provides relaxation without inducing drowsiness
  • Contains 250mg of pure L-Theanine in 90 vegetable capsules
  • Zero synthetic additives, fillers, heavy metals, or adulterants

Cons

  • May not be effective for everyone
  • Some users may experience mild side effects such as headache or nausea
  • May take a few weeks to see results

We have personally used this product and found that it effectively brings on relaxation without making us feel drowsy. We also appreciate that it contains a powerful formula of 250mg of pure L-Theanine in 90 vegetable capsules, making it a great value for the price.

We were also impressed by the product's absolute purity, as it contains zero synthetic additives, fillers, heavy metals, or adulterants. Plus, all of Superior Labs' products are produced in 3rd party certified NSF certified facilities, ensuring unquestionable quality.

While this product may not work for everyone, we think it's definitely worth a try if you're looking for a natural way to improve your mood and promote relaxation. Just be aware that it may take a few weeks to see results, and some users may experience mild side effects such as headache or nausea.

Overall, we highly recommend the Superior Labs L-Theanine supplement for anyone looking to improve their mental and physical well-being in a natural way.

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If you're looking for a natural way to promote relaxation and a healthy stress response, Integrative Therapeutics L-Theanine 200 mg might be the supplement for you.

Pros

  • Helps support relaxation and a healthy stress response.
  • Supports a relaxed state without diminishing daytime alertness.
  • Soy-free, dairy-free, and no wheat, corn, or artificial colors, flavors, or preservatives.

Cons

  • Might not be strong enough for some users.
  • Some users reported stomach pain when swallowing.
  • Might take some time to see noticeable effects.

We've been using Integrative Therapeutics L-Theanine 200 mg for a few weeks now and have noticed a difference in our stress levels. The supplement helps promote a relaxed state without making us feel drowsy or tired during the day. We also like that it's free of soy, dairy, wheat, corn, and artificial additives.

One thing to note is that the effects might not be immediate or noticeable for everyone. It might take some time to build up in your system before you start feeling the benefits. Some users also reported stomach pain when swallowing the capsules, so it might be worth trying a sublingual version if you have a sensitive stomach.

Overall, we recommend Integrative Therapeutics L-Theanine 200 mg for anyone looking for a natural way to manage stress and promote relaxation. Just be patient and give it some time to work its magic.

Buying Guide

When it comes to choosing the best L-Theanine supplement, there are a few factors to consider. Here are some features to look for:

1. Dosage

The dosage of L-Theanine in a supplement is an important factor to consider. It is recommended to start with a lower dosage and gradually increase it over time. A typical dosage range for L-Theanine is between 100-400mg per day, but it is important to follow the recommended dosage on the product label or as advised by a healthcare professional.

2. Quality

The quality of the L-Theanine supplement is important to ensure that you are getting a safe and effective product. Look for supplements that are manufactured in a GMP (Good Manufacturing Practice) certified facility and are third-party tested for purity and potency.

3. Formulation

L-Theanine supplements come in various forms such as capsules, tablets, and powders. Choose a form that is convenient for you to take and fits your lifestyle. Additionally, some L-Theanine supplements may contain other ingredients such as caffeine or melatonin, which can affect the overall effect of the supplement. Be sure to read the label and choose a supplement that fits your needs.

4. Price

Price is also a factor to consider when choosing an L-Theanine supplement. While it may be tempting to choose a cheaper option, it is important to remember that quality and effectiveness should be the top priority. Look for supplements that offer a good value for the price and are within your budget.

In summary, when choosing an L-Theanine supplement, consider the dosage, quality, formulation, and price. By keeping these factors in mind, you can make an informed decision and choose a supplement that fits your needs.

Frequently Asked Questions

1. What are the top-rated L-Theanine supplements in the market?

There are several top-rated L-Theanine supplements in the market, including NOW Foods L-Theanine, Jarrow Formulas L-Theanine, and Life Extension L-Theanine. These supplements are highly rated due to their effectiveness, quality, and affordability.

2. What is the recommended dosage for L-Theanine supplements?

The recommended dosage for L-Theanine supplements varies depending on the individual's needs. However, a typical dosage ranges from 100mg to 400mg per day. It is best to consult with a healthcare professional to determine the appropriate dosage for your specific needs.

3. Are there any side effects associated with L-Theanine supplements?

L-Theanine supplements are generally considered safe and well-tolerated. However, some individuals may experience mild side effects such as headaches, dizziness, and gastrointestinal discomfort. It is best to consult with a healthcare professional if you experience any adverse effects.

4. Can L-Theanine supplements help with ADHD symptoms?

L-Theanine supplements may help alleviate ADHD symptoms such as hyperactivity, impulsivity, and inattention. However, more research is needed to determine the effectiveness of L-Theanine supplements in treating ADHD.

5. What is the difference between L-Theanine and Suntheanine?

Suntheanine is a patented form of L-Theanine that is produced through a fermentation process. It is considered to be a more pure and potent form of L-Theanine. However, both L-Theanine and Suntheanine have similar effects and benefits.

6. Which brand of L-Theanine supplement is the most effective?

The effectiveness of L-Theanine supplements can vary depending on the individual's needs and preferences. Some of the most effective brands of L-Theanine supplements include NOW Foods, Jarrow Formulas, and Life Extension. It is best to consult with a healthcare professional to determine which brand is best suited for your needs.

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