Who Should Buy L-Theanine?

L-Theanine is perfect for anyone seeking a natural way to promote relaxation, reduce stress, or improve sleep quality. It’s a great choice for those who want to support mental calmness and focus without relying on habit-forming supplements. If you manage occasional anxiety, have trouble unwinding, or want to enhance your overall sense of well-being, L-theanine—especially a trusted form like Suntheanine—can be a valuable daily addition.

What can Suntheanine (L-Theanine) be used to treat?

Suntheanine, a specialized form of L-theanine, promotes relaxation, reduces stress, and enhances mental focus without causing drowsiness. It is often used to manage stress, improve mental clarity, and support better sleep quality for those experiencing mild insomnia or difficulty relaxing. If you're looking for a natural way to improve focus or manage stress, Suntheanine is a well-researched and effective option.

Suntheanine is a branded, high-purity form of the amino acid L-theanine, naturally found in green tea leaves. It is produced through a patented fermentation process that mimics how L-theanine is created in tea plants, ensuring consistent quality and potency. Many people prefer Suntheanine for its superior purity and effectiveness compared to generic L-theanine supplements.

How do I use Suntheanine?

Revive Suntheanine is meant to be taken orally with water, preferably with a meal. Follow the suggested use on the product label for serving sizes, or consult with your doctor for personalized recommendations.

What are the symptoms of GABA deficiency?

GABA is a calming neurotransmitter that helps prevent the brain from becoming overstimulated. Low GABA levels may cause anxiety, racing thoughts, trouble sleeping, irritability, muscle tension, and difficulty relaxing. Persistent symptoms should be discussed with a healthcare provider to rule out other causes and explore support options.

Who should not take Suntheanine®?

Suntheanine® is generally safe but may not be suitable for everyone. Avoid or consult your healthcare provider before use if you are pregnant, nursing, under 18 years old, taking prescription medications for blood pressure, sleep, or mood, or have a medical condition and are unsure about safety. Always check with your doctor or pharmacist before starting any new supplement.

Revive Suntheanine supplement with 100mg of pure L-theanine per serving, formulated to support calm focus, stress relief, and relaxation without drowsiness.

Revive Suntheanine supplement key ingredient infographic showcasing patented L-theanine for relaxation, alertness, and mental clarity without sedative effects.

Revive Suntheanine supplement benefits infographic highlighting relaxation without sedation, mental clarity, stress resilience, mood balance, and non-habit-forming, stimulant-free support.

Suntheanine (L-Theanine)

Name: Suntheanine (L-Theanine)
Brand: Revive MD
SKU: REV-SUNTH
Price: 23.99 USD
Availability: InStock

$23.99

Reduce fatigue*

Promotes restful sleep*

Improve brain performance*

One-time purchase – $23.99

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Revive Suntheanine COA
L-Theanine (as Suntheanine)
L-Theanine is an amino acid naturally found in tea leaves, best known for its ability to promote a sense of calm without making you drowsy. Suntheanine® is a patented, pure form of L-Theanine made through a fermentation process that mimics how it’s created in nature. This ingredient supports relaxation, mental focus, and a balanced stress response by increasing calming brain chemicals like GABA and serotonin, as well as encouraging alpha brain waves, which are linked to a state of “relaxed alertness."*
Taken daily, Suntheanine® supplements can help support relaxation, focus, and stress relief, all without making you feel tired. This form of L-theanine is an underrated supplement in the health industry and has a variety of practical uses and benefits. Whether it's your first time trying this supplement or you're coming back for more, there's never been a better time to stock up!*

Product label may slightly vary.

Suggested Use: As a dietary supplement, take one (1) veggie capsule daily with 8-12 fl oz of water, preferably with a meal.
Items in stock will typically ship out in2-3 business days. Please allow extra time when there is a new release of product(s) as our team will be backed up with orders.

Meet Revive Suntheanine (L-Theanine)

Suntheanine® is our patented form of L-Theanine, the relaxing amino acid naturally found in green tea. It’s one of the easiest ways to feel calmer and more focused, without making you sleepy.

Many people pair Suntheanine® with coffee or tea because it helps smooth out the “jitters” from caffeine, leaving you alert but relaxed. On busy or stressful days, it can help take the edge off, supporting a calmer mood and clear head.

Here’s how it works: L-Theanine can actually reach your brain, where it helps balance brain chemicals that control mood and focus. Research shows it can raise levels of calming neurotransmitters like GABA and serotonin while also supporting alpha brain waves, the same brain activity linked to feeling relaxed but alert. This means you can feel calm, focused, and clear-headed without getting drowsy.

Revive Suntheanine® supplement is made through a special fermentation process that guarantees a clean, high-quality supplement you can count on.*

How to Take It: Just take one (1) veggie capsule per day with a glass of water, ideally with a meal.

Clinically Studied L-Theanine for Calm Focus

Woman smiling, holding a bottle labeled 'Women's Health' and a pill.

Stress Reduction

Helps reduce tension without drowsiness*

Focus and Clarity

Supports alertness and cognitive function*

Mood Balance

Encourages emotional regulation and calm*

Non-Habit Forming

Naturally supports relaxation without sedation*

L-Theanine is perfect for anyone seeking a natural way to promote relaxation, reduce stress, or improve sleep quality. It’s a great choice for those who want to support mental calmness and focus without relying on habit-forming supplements.

If you manage occasional anxiety, experience difficulty unwindin, or simply want to enhance your overall sense of well-being, buying L-theanine—especially a trusted form like Suntheanine—can be an effective addition to your daily routine.
Stress & anxiety: promotes relaxation by increasing calming brain waves (alpha waves) and reducing overactive stress responses, without causing drowsiness.*

Sleep problems / mild insomnia: helps quiet racing thoughts and supports deeper, more restorative sleep cycles.*

Difficulty focusing: enhances alertness and mental clarity, making it easier to concentrate on tasks for longer periods.*

Caffeine jitters & overstimulation: smooths out the side effects of coffee or energy drinks while preserving the boost in alertness.*

Low mood & irritability: supports healthy serotonin and dopamine activity, which can improve mood stability and overall emotional well-being.*

Stress-related blood pressure spikes: research suggests L-theanine may help maintain normal blood pressure in stressful situations.*

Cognitive performance & memory: by promoting calm but alert brain activity, Suntheanine may improve learning efficiency and recall.*

Tension headaches or muscle tightness: L-Theanine’s relaxation effects can sometimes ease stress-related physical tension.*
GABA (gamma-aminobutyric acid) is a calming neurotransmitter that helps keep the brain from becoming overstimulated. When GABA levels are too low, people may experience symptoms such as:

- Anxiety or nervousness
- Racing thoughts
- Trouble falling or staying asleep
- Feeling “on edge” or irritable
- Muscle tension
- Difficulty relaxing

If these symptoms are ongoing, it’s always best to talk to a healthcare provider to rule out other possible causes and discuss support options.*
Revive Suntheanine is meant to be taken orally with water, preferably with a meal. Just take one (1) veggie capsule per day as suggested on our label. For best results, take it consistently each day.

In the morning or afternoon, it may help with focus, calm, and stress support.

In the evening, it can promote relaxation and better sleep if taken 30–60 minutes before bed.
Always follow the directions on the label or consult with your doctor for more personalized guidance.*
Suntheanine is generally well-tolerated, but it may not be right for everyone. You should avoid or speak with a healthcare provider before taking Suntheanine® if you:

- Are pregnant or nursing
- Are under 18 years old
- Take prescription medications for blood pressure, sleep, or mood (as L-theanine can interact with some of these)
- Have a diagnosed medical condition and are unsure if L-theanine is safe for you

When in doubt, check with your doctor or pharmacist before starting any new supplement.

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