Relax Without Drowsiness

Suntheanine® improves focus, attention, mental clarity and learning performance and improves sleep quality.*

Calm

Promotes an alert state of relaxation without drowsiness*

Focus

Improve focus without the negative side effects of caffeine*

Clarity

Enhance attention and concentration*

Purity

Clinically researched and patented pure form of L-theanine

100% Pure L-Isomer-theanine

Suntheanine® is produced via an enzymatic fermentation process that mimics the natural process in green tea leaves resulting in a 100% pure L-isomer-theanine.

Suntheanine® is protected by U.S. and International patents and is backed by more than 40 clinical studies.

Suntheanine nongmo
Suntheanine Kosher
Suntheanine hallal
informed ingredient

What the Experts Say

“Stress affects so many areas of your life, from sleep to sports performance to energy levels. It’s clear your mental health drives your physical health. Suntheanine® helps you settle into a more positive cycle: sleeping better at night leads to more daytime energy which leads to more quality sleep and continued productive days.”
Suntheanine® replaces my 2 p.m. cup of coffee, giving me the power of coffee without the jitters. A calm, focused and alert attention is the type of energy we all desire: energy that makes us more efficient, not frazzled and distracted.”
Shawn Talbott

Shawn Talbott, PhD
Psychonutritionist

Bryce Wylde Profile Picture

Bryce Wylde, B.Sc. Hons. (BioPsyc), DHMHS
Alternative medicine expert

“Stress affects so many areas of your life, from sleep to sports performance to energy levels. It’s clear your mental health drives your physical health. Suntheanine® helps you settle into a more positive cycle: sleeping better at night leads to more daytime energy which leads to more quality sleep and continued productive days.”
Shawn Talbott

Shawn Talbott, PhD
Psychonutritionist

Suntheanine® replaces my 2 p.m. cup of coffee, giving me the power of coffee without the jitters. A calm, focused and alert attention is the type of energy we all desire: energy that makes us more efficient, not frazzled and distracted.”
Bryce Wylde Profile Picture

Bryce Wylde, B.Sc. Hons. (BioPsyc), DHMHS
Alternative medicine expert

See what Suntheanine® is all about.

A blog for those who want to know

Sharpen your mind, reduce stress and optimize sleep

Sharpen your mind, reduce stress and optimize sleep

“Stress is the number one, North America-wide silent killer,” states Bryce Wylde, DHMHS,  functional medicine clinician, CSO and founder of Mymmunity, co-founder of Youtrients: The DNA Co., author and TV host. “We need to crack the code on it, and it’s not about …...

Suntheanine’s many uses highlighted at Expo West 2023

Suntheanine’s many uses highlighted at Expo West 2023

Where do the leading dietary supplement companies go to discover the best ingredients available? Many attend (and also exhibit at) Expo West in Anaheim, California. This behind-the-scenes video from the show looks at why many top brands use Suntheanine in their...

Join us for The Suntheanine Solution!

Join us for The Suntheanine Solution!

There are many reasons why Suntheanine is the leading brand of L-theanine. Have you ever wondered what leading healthcare practitioners have to say about it? Here’s your chance! Join us for our free, fun and informative live webinar, The Suntheanine Solution: Sharpen...

Sharpen your mind, reduce stress and optimize sleep

Sharpen your mind, reduce stress and optimize sleep

“Stress is the number one, North America-wide silent killer,” states Bryce Wylde, DHMHS,  functional medicine clinician, CSO and founder of Mymmunity, co-founder of Youtrients: The DNA Co., author and TV host. “We need to crack the code on it, and it’s not about …...

Suntheanine’s many uses highlighted at Expo West 2023

Suntheanine’s many uses highlighted at Expo West 2023

Where do the leading dietary supplement companies go to discover the best ingredients available? Many attend (and also exhibit at) Expo West in Anaheim, California. This behind-the-scenes video from the show looks at why many top brands use Suntheanine in their...

Join us for The Suntheanine Solution!

Join us for The Suntheanine Solution!

There are many reasons why Suntheanine is the leading brand of L-theanine. Have you ever wondered what leading healthcare practitioners have to say about it? Here’s your chance! Join us for our free, fun and informative live webinar, The Suntheanine Solution: Sharpen...

How to keep your new year’s mental health resolutions

How to keep your new year’s mental health resolutions

These days, many people want to improve their mental health. Stresses brought on by the economy, supply chain delays and social unrest can easily pile on top of more everyday sources of tension. If you’re feeling overwhelmed and cranky – and determined to do something...

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