meta analysis · 2019 · Phytomedicine92% quality
Effects of lavender on anxiety: a systematic review and meta-analysis
Donelli D, et al.
doi:10.1016/j.phymed.2019.153099Primary literature, digested honestly→
Every claim on this sitetraces backto a paper.
No marketing, no recycled abstracts. A short digest, an honest takeaway, and a link to the original paper. When trial design is weak we say so. When evidence is thin we say so. When the effect is real we say that too.
IISection · 02
Recent literature
— 12 references currently linked to plant profiles. Each digest below traces back to at least one cited plant on the site.
rct · 2016 · Phytomedicine78% quality
Long-term chamomile (Matricaria chamomilla L.) treatment for GAD
Mao JJ, et al.
doi:10.1016/j.phymed.2016.10.012rct · 2014 · Int Clin Psychopharmacol85% quality
Silexan in generalized anxiety disorder: 10-week RCT
Kasper S, et al.
Cited on:Lavender
doi:10.1097/YIC.0000000000000013 monograph · 2012 · European Medicines Agency78% quality
Community herbal monograph on Lavandula angustifolia Mill., flos
EMA HMPC
rct · 2011 · Phytother Res68% quality
A double-blind, placebo-controlled investigation of the effects of Passiflora incarnata
Ngan A, Conduit R
doi:10.1002/ptr.3400rct · 2011 · Med J Nutrition Metab65% quality
Pilot trial of Melissa officinalis L. leaf extract in mild to moderate anxiety
Cases J, et al.
doi:10.1007/s12349-010-0045-4rct · 2010 · Menopause72% quality
Effect of valerian on sleep quality in post-menopausal women
Taavoni S, Ekbatani N, Kashaniyan M
rct · 2009 · J Clin Psychopharmacol80% quality
A randomized trial of Matricaria recutita extract therapy for generalized anxiety
Amsterdam JD, et al.
Cited on:Chamomile
doi:10.1097/JCP.0b013e3181ac935c meta analysis · 2008 · Cochrane Database Syst Rev94% quality
St John's wort for major depression — Cochrane review
Linde K, et al.
meta analysis · 2007 · Lancet Infect Dis82% quality
Echinacea for preventing and treating the common cold
Shah SA, et al.
Cited on:Echinacea
case report · 2007 · N Engl J Med55% quality
Prepubertal gynecomastia linked to lavender and tea tree oils
Henley DV, et al.
doi:10.1056/NEJMoa064725rct · 2003 · Pharmacol Biochem Behav70% quality
Modulation of mood and cognitive performance following acute administration of Melissa officinalis
Kennedy DO, et al.
IIISection · 03
The evidence ladder
— Five tiers, transparent weighting. The same paper always lands on the same rung — and we show you which rung on every claim.
I
Meta-analyses & systematic reviews
Pooled data across many trials. Weighted highest when methodology is sound (Cochrane-grade).
II
Randomised controlled trials
Single RCTs, ideally double-blind and placebo-controlled. Sample size and replication matter.
III
Open-label & observational studies
Cohort studies, case series. Useful for signals, weak for causation.
IV
Traditional pharmacopoeia
EMA/HMPC monographs, national pharmacopoeias. Centuries of use, modern review.
V
Ethnobotanical record
Anthropological literature, herbarium notes. Lowest weight, but historically important context.
IVSection · 04
Where we pull from
— The standing sources behind the PlantSage database. Each one we credit on the plant profiles that use its data.
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