Suntheanine® 200 mg
The Original L-theanine
The original, most clinically researched L-theanine. Clinically proven to support calm, focus, and restful sleep without drowsiness. Backed by 50+ Suntheanine®-specific studies and 30+ years of trust for quality, consistency, and predictable results. Suntheanine® is produced through a patented enzymatic fermentation process that mirrors how L-theanine forms naturally, delivering a clinically meaningful dose with unmatched purity and fast-acting calm you can feel. If you've tried generic L-theanine, prepare for a real upgrade.
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Why You’ll Love Suntheanine®?
Certifications
What Makes Suntheanine® Different ?
The original L-theanine
Bio-identical, mirrors nature
Made by enzymatic fermentation
50+ clinical studies
FDA GRAS confirmed safety
Consistent, predictable results
Trusted worldwide for 30+ years
How Suntheanine® Works
Suntheanine® L-theanine supports a calm, relaxed alertness by influencing the brain's natural alpha wave activity. This is the same brainwave pattern associated with deep focus and mental clarity.
01
Crosses the blood brain barrier efficiently*
02
Helps promote focus*
03
Improves cognitive performance when combined with caffeine*
04
Quickly feel the benefits after your first dose*
05
Promotes calm and clarity without grogginess*
For Moments
When It Matters Most
When pressure builds, you need to stay clear, composed, and in control.
- Calm without losing clarity
- Focus without overstimulation
- Rest without sedation
What the Experts Say
Shawn Talbott
PhDPsychonutritionistStress affects many areas of your life, from sleep to sports performance to energy levels. 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.
Bryce Wylde
B.Sc. Hons. (BioPsyc), DHMHSFunctional Medicine ExpertSuntheanine® 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.
Michael R. Lyon
MDPhysician, medical researcher and authorI was in charge of a large double blind study where 200 mg Suntheanine® was consumed twice per day for 6 weeks in 8-12 years boys with ADD. No side effects were reported and I now view Suntheanine® as one of the safest natural products that can be given to a child.Frequently Asked Questions
Most people feel noticeably calmer and report more focus with their very first dose, often within about 30 minutes.*
Yes, you can take Suntheanine® with caffeine to help smooth out jitteriness while at the same time supporting mental clarity.*
Suntheanine® is clinically researched, patented, nature inspired, and produced via a patented pure enzymatic fermentation.*
No. Suntheanine® supports calm and clarity without sedation.*
Suntheanine® has been used safely in numerous clinical trials and is trusted by healthcare practitioners.*
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