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RŌNIN V6 · ON THE LABEL AT ROW 08 OF 40

L-Theanine.

≥98% L-isomer, suntheanine®. In Rōnin at 200 mg per serving - published to the milligram, tested every batch.

200 mgPER SERVING · 30 SERVINGS PER POUCH

L-Theanine - ≥98% l-isomer, photographed for the Rōnin label archive
SPECIMEN 08 / 40 ≥98% L-ISOMERSUNTHEANINE®

AS PRINTED ON THE LABEL

FORM
≥98% L-isomer
DOSE PER SERVING
200 mg
STANDARDISATION
Suntheanine®
GROUP
Cognitive, Stress & Adaptogens

WHY IT’S IN

On the label for a reason.

L-Theanine sits in the Cognitive, Stress & Adaptogens group at 200 mg - ≥98% L-isomer; Suntheanine®. The 3 papers below are the reasoning: we cite them, and we claim nothing beyond them.

THE RESEARCH · 3 PEER-REVIEWED PAPERS

Peer-reviewed. Or it is not on the page.

Human research supporting this ingredient at this dose. Every entry names its journal, carries its PubMed ID, and links to the source.

  1. 01PMID 18681988

    The combined effects of L-theanine and caffeine on cognitive performance and mood.

    Owen GN, et al. (2008). Nutr Neurosci. 11(4):193–8.

    READ ON PUBMED →
  2. 02PMID 31623400

    Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial.

    Hidese S, et al. (2019). Nutrients. 11(10):2362.

    READ ON PUBMED →
  3. 03PMID 18296328

    L-theanine, a natural constituent in tea, and its effect on mental state.

    Nobre AC, et al. (2008). Asia Pac J Clin Nutr. 17 Suppl 1:167–8.

    READ ON PUBMED →

REFERENCES VERIFIED AGAINST NCBI · TITLES AS PUBLISHED

Browse the full research library →

WORKS ALONGSIDE · SAME LABEL GROUP

THE HONEST LIMITS

We publish the dose and the studies, and we claim nothing beyond them. If the evidence changes, this page changes.

One of 40. Every active dosed.