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250mg L-Theanine Capsules

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Experience enhanced focus and relaxation with our 250mg L-Theanine vitamin supplement. Its potent formula promotes mental clarity, reduces stress, and supports overall well-being.
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asked questions

What is L-Theanine?

L-theanine is an amino acid found primarily in tea leaves. It is known for its calming effects and ability to promote relaxation without inducing drowsiness. L-theanine has been shown to increase levels of GABA, dopamine, and serotonin, which are neurotransmitters that regulate mood, reduce stress and anxiety, and improve overall cognitive function. L-theanine is considered to be safe and non-toxic and is commonly used as a dietary supplement to improve mental clarity and focus. Some studies have also suggested that it may have potential health benefits, including reducing symptoms of anxiety, improving sleep quality, and boosting the immune system.*

How does L-Theanine work?

L-theanine works by affecting the levels of neurotransmitters in the brain. It has been shown to increase the levels of GABA, dopamine, and serotonin, which are neurotransmitters that regulate mood, reduce stress and anxiety, and improve overall cognitive function. 

L-theanine also has a unique ability to cross the blood-brain barrier, which allows it to have direct effects on the brain. It has been shown to reduce the symptoms of stress and anxiety by promoting a state of relaxation and calmness, while also improving mental clarity and focus. 

Additionally, L-theanine has been shown to reduce the physiological effects of stress, such as increased heart rate and blood pressure, by promoting relaxation and reducing the levels of stress hormones in the body. 

Overall, L-theanine works by modulating the levels of neurotransmitters in the brain and promoting a state of relaxation, thereby reducing stress and anxiety and improving mental focus and clarity.*

Does L-Theanine help reduce caffeine jitters?

Yes, l-theanine is often used to help reduce the negative side effects of caffeine, such as jitters, anxiety, and increased heart rate. When consumed together, caffeine and l-theanine can have a synergistic effect, where the combination of the two is greater than the sum of its parts.

L-theanine promotes relaxation and reduces stress and anxiety, which can help counteract the negative effects of caffeine. It has been shown to reduce the physiological effects of caffeine, such as increased heart rate and blood pressure, while also improving mental focus and clarity.

When taking caffeine and l-theanine together, the caffeine can provide a boost of energy and alertness, while the l-theanine can help reduce the negative side effects and promote a state of relaxation and calmness. As a result, many people find that taking l-theanine with caffeine can help improve mental focus and productivity, while reducing the negative effects of caffeine. 

However, it's important to note that everyone's response to caffeine and l-theanine can be different, and some people may not experience a reduction in the negative side effects of caffeine with l-theanine. It's always a good idea to start with a small dose and observe your response, and adjust the dose as needed.*

When is the best time take L-Theanine?

To support reducing stress and anxiety: L-theanine can be taken throughout the day to help reduce stress and anxiety. Some people find it helpful to take it in the morning to start the day off feeling calm and relaxed, while others prefer to take it in the afternoon or evening to unwind after a long day. 

To improve sleep quality: If you're using L-theanine to help improve your sleep quality, it's best to take it in the evening, as it can promote relaxation and reduce stress and anxiety, which can make it easier to fall asleep. 

To enhance mental focus and clarity: If you're using L-theanine to improve mental focus and clarity, it's best to take it in the morning or early afternoon, as it can help reduce the negative side effects of caffeine and enhance mental clarity. 

It's important to note that everyone's response to L-theanine can be different, and the best time to take it will depend on your individual needs and goals. If you're unsure when is the best time for you to take L-theanine, it's a good idea to consult with your doctor.*

Can L-Theanine cause drowsiness or sedation?

No, L-Theanine promotes relaxation without inducing drowsiness or sedation.

Is L-Theanine safe to use with other supplements or medications?

L-Theanine is generally safe for most people, but it's always advisable to consult with a healthcare professional if you're taking other supplements or medications.

How long does it take to experience the effects of L-Theanine?

The effects of L-Theanine may vary from person to person, but many individuals report feeling its benefits within 30-60 minutes of consumption.

Can L-Theanine be taken on an empty stomach?

Yes, L-Theanine can be taken on an empty stomach without any issues. However, some individuals may prefer taking it with food to aid absorption or reduce the risk of stomach discomfort.

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Racing Thoughts? Anxiety?

Are you tired of feeling like your mind is constantly racing? Do stress and anxiety leave you feeling drained and overwhelmed?

L-Theanine has been shown to promote relaxation without causing drowsiness, helping to ease the mind and soothe the body during times of stress and anxiety.

By taking our L-Theanine supplement, you can enter a state of calm focus, where racing thoughts and worries fade away.

Sleepless nights are going to be a thing from the past. With SmarterVitamins' L-Theanine supplement, you'll experience a renewed sense of calm and focus that will leave you feeling energized and ready to tackle whatever comes your way.

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Flaxseed Oil

Flaxseed Oil

Flaxseed oil provides essential fatty acids that nourish and protect the brain, improving cognitive function and supporting overall health.
L-Theanine Leaves


L-theanine, the secret weapon for unlocking your mind's true potential. This incredible compound has been scientifically proven to enhance cognitive function, promote relaxation, and boost creativity like never before.

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Why you should choose 
SmarterVitamins L-Theanine

  • Promotes relaxation without causing drowsiness*

  • Promotes overall physical and mental well-being*

  • Enhances mental clarity and focus*

  • Boosts cognitive function and memory*

  • Improves sleep quality and duration*

  • Supports a healthy immune system*

  • Helps to regulate blood pressure levels*

  • Reduces the risk of cognitive decline*

  • Enhances mood and reduces symptoms of depression*

  • Helps to ease the mind and soothe the body during times of stress and anxiety*

Looking for a non-drowsy relaxation solution? L-Theanine promotes relaxation without sedation.

L-Theanine is a remarkable natural compound known for its ability to promote relaxation without causing drowsiness or sedation. Unlike other relaxation methods that may leave you feeling groggy or unfocused, L-Theanine offers a gentle and calming effect on the mind and body. By increasing the production of alpha brain waves, it induces a state of alert relaxation, leaving you feeling calm and composed while maintaining mental clarity and focus.

One of the key benefits of L-Theanine is its ability to reduce stress and anxiety levels without compromising cognitive function. It acts on neurotransmitters in the brain, such as gamma-aminobutyric acid (GABA), which helps regulate emotions and promote a sense of relaxation. By modulating these neurotransmitters, L-Theanine provides a non-drowsy solution that effectively promotes a calm state of mind without interfering with daily activities or productivity.

Whether you're dealing with a hectic work schedule, demanding responsibilities, or simply seeking a moment of tranquility, L-Theanine can be a valuable addition to your relaxation routine. Its unique properties offer a natural alternative for those who prefer to avoid sedating substances or sleep-inducing effects. Experience the soothing benefits of L-Theanine and discover a renewed sense of relaxation without compromising your energy or mental sharpness.

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Smarter L-Theanine versus other brands
What sets us apart at SmarterVitamins is that we refuse to take shortcuts on our products. Our ingredients are best in class. Our formulas are unique and designed to improve human function. We hope to inspire next level performance through fitness, foods, and supplements.
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If you are unhappy with a product, simply return it within 60 days of recieving it and we'll give you a full refund.

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L-Theanine as a Functional Food Additive: Its Role in Disease Prevention and Health Promotion.
L-theanine, a natural constituent in tea, and its effect on mental state.
Five randomized controlled trials with a total of 104 participants found L-theanine reduced stress and anxiety in people who were experiencing stressful situations.
Researchers found that L-theanine decreased anxiety and improved symptoms.
Efficiency of conversion of alpha-linolenic acid to long chain n-3 fatty acids in man.
Dietary supplementation with flaxseed oil lowers blood pressure in dyslipidaemic patients.