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Rhodiola rosea

Golden root / arctic root · Brain

LimitedLittle human data — early, small, or narrow.

An adaptogen with a small, mostly Eastern European literature suggesting it helps fatigue more than stress.

What the evidence says

The better trials examine fatigue — in shift workers, students during exams, and burnout — and report modest improvements. Study quality is variable, samples are small, and much of the work comes from a narrow set of research groups, which is the same evidentiary shape as several Russian-institute compounds in this app. Promising is the honest ceiling.

What studies used

Trials commonly used 200–600 mg/day of standardised extract. Stimulating for some people; trials generally dosed earlier in the day.

Reported from published studies and product labelling — a record of what was used in research, not a recommendation. What is right for you is a conversation with a clinician.

Watch out for

  • Can be activating enough to disturb sleep
  • Standardisation varies widely between products

Evidence base

A1,550 research papers
established literature

Strong human evidence: either a phase 3 or 4 trial report alongside review-level evidence, or ten or more randomised controlled trial reports.

This letter measures how much human research exists, not whether it works for you — the tier above (Limited) is the read on quality.

Research (12)

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