Suntheanine
People mainly take Suntheanine for anxiety. Based on 5 first-hand reports. Ranked #322 of 1,974 overall.
34
User score
Mostly positive60% positive20% mixed0% negative20% unclear
Of reports that state an outcome, 75% are positive.
Clinical research
Research pending
What Suntheanine does, according to users
Of the people who reported each effect, the share who said it got better.
betterno changeworse
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
Research data for Suntheanine is being compiled.
Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
No doses stated in the reports so far.
Reported side effects
How often each side effect came up across all reports.
No side effects reported so far.
What users say
Verbatim quotes, shortened only — each links to the original discussion.
“I found l-theanine made with Suntheanine to be much more effective. (I've tried a few)”
“Make sure you're taking one made with Suntheanine. I use the Sports Research brand and it's amazing.”
“i enjoy Suntheanine”
“I got Suntheanine on Amazon. I can finally sit still.”
“suntheanine (a compound found in green tea that does all kinds of wonderful things for the mind)”
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User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate