Passionflower (Passiflora incarnata) has a long history of traditional use as a calming herb, and modern research is beginning to support several of these applications. Studies indicate that passionflower extract may help reduce symptoms of anxiety, with some clinical trials suggesting it performs comparably to certain conventional anxiolytic agents. Research also suggests potential benefits for sleep quality, with participants in several studies reporting improvements in subjective sleep measures after using passionflower preparations. Emerging evidence points to possible supportive roles in managing ADHD-related symptoms and easing certain discomforts associated with menopause, though these areas remain less thoroughly studied. Commonly available as a standardized extract or dried aerial parts, passionflower continues to attract scientific interest as a gentle botanical with a generally favorable safety profile in the existing literature.
Compare this supplementResearch suggests that passionflower may offer modest benefits for sleep quality, with the available evidence coming ...
View studies →Research suggests that passionflower has not been studied in isolation as a treatment for ADHD, and the available evi...
View studies →Research suggests that passionflower may offer meaningful relief from anxiety symptoms, with evidence drawn from a 20...
View studies →Research suggests that passionflower may support menopause-related symptoms such as anxiety, mood disturbance, and sl...
View studies →These are commonly referenced dosage ranges for this supplement. They are not medical recommendations. Always consult a healthcare provider before supplementing.
| Form | Dose range | Frequency | Studied for | Source |
|---|---|---|---|---|
| Capsule | 400–800 mg | Daily | sleep quality | Based on RCTs evaluating passionflower for sleep improvement in adults |
| Extract | 45–90 mg | Daily | anxiety relief | Based on RCTs comparing passionflower extract to oxazepam for generalized anxiety disorder |
| Extract | 252 mg | Daily | menopause support | Used in clinical trials evaluating passionflower for menopausal symptom relief including hot flashes and sleep disturbance |
| Liquid | 1–2 g | Daily | ADHD support | Limited clinical evidence; based on small pilot studies comparing passionflower to methylphenidate in children |
| Tablet | 260 mg | Three times daily | anxiety relief | Common in clinical trials using standardized Passiflora incarnata tablets for anxiety |