Strong evidenceherb
Valerian for Insomnia
Inhibits GABA reuptake and acts as adenosine receptor agonist, promoting sleep onset and maintenance.
How strong is the research?
Strong evidence
Based on a meta-analysis of multiple studies — the highest level of research evidence.
Research source
SourceFernandez-San-Martin MI et al. · Am J Med 2010How much to take
400–900 mg
Take 30-60 minutes before sleep. Effects improve over 2-4 weeks.