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Ingredient

Rhodiola Rosea

Traditional

An adaptogenic herb with traditional use and a small-but-suggestive human-trial record.

How it works

May modulate hypothalamic-pituitary-adrenal axis activity and monoaminergic signalling.

Evidence

Traditional adaptogen; a small RCT supports fatigue/stress support at 400 mg/day of a standardized extract.

Studies

Edwards et al., Phytotherapy Research, 2012
Open-label trial of WS®1375 at 200 mg twice daily (400 mg/day) reported improvements in stress-related fatigue symptoms.
PubMed 22228617 ↗
Panossian et al., Phytomedicine, 2010
Review of adaptogenic mechanisms (mechanism reference only; not a dose source).
PubMed 20378318 ↗

One ingredient, one study, one product worth your money.

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