Strong evidenceherb
Rhodiola for Lack of Focus
Rhodiola modulates HPA axis activity and enhances monoamine neurotransmitter levels (dopamine, serotonin, norepinephrine), supporting mental stamina and sustained attention during cognitively demanding tasks.
How strong is the research?
Strong evidence
Based on a randomised controlled trial (RCT) — the gold standard for establishing cause and effect.
Research source
SourceOlsson EM et al. · Planta Medica 2009How much to take
200–400 mg
Best taken early in the day. Standardized to 3% rosavins and 1% salidroside.
When to take it
Best taken: morning