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Types of Passionflower: Forms & Bioavailability

Evidence:Moderate
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This content is for informational purposes only and does not constitute medical advice. Statements about dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary — consult your healthcare provider before starting any supplement. Full disclaimer

Forms Comparison

FormBioavailabilityBest For
Standardized Passionflower Extract (3.5% vitexin)ModerateAnxiety and sleep — standardized for consistent flavonoid content
Passionflower Tincture (1:4)Moderate-HighFlexible dosing — liquid form for rapid absorption, used in Akhondzadeh RCT
Passionflower Tea (Dried Herb)Low-ModerateMild sleep support — gentle form studied in Ngan & Conduit (2011) sleep trial
Dried Powder CapsulesLow-ModerateConvenience — whole herb in capsule form, less potent than standardized extract

Standardized Passionflower Extract (3.5% vitexin)

Bioavailability: Moderate. Best for: Anxiety and sleep — standardized for consistent flavonoid content.

Passionflower Tincture (1:4)

Bioavailability: Moderate-High. Best for: Flexible dosing — liquid form for rapid absorption, used in Akhondzadeh RCT.

Passionflower Tea (Dried Herb)

Bioavailability: Low-Moderate. Best for: Mild sleep support — gentle form studied in Ngan & Conduit (2011) sleep trial.

Dried Powder Capsules

Bioavailability: Low-Moderate. Best for: Convenience — whole herb in capsule form, less potent than standardized extract.

Full Passionflower Guide

References

  1. RCTAkhondzadeh S, Naghavi HR, Vazirian M, Shayeganpour A, Rashidi H, Khani M (2001). Passionflower in the treatment of generalized anxiety: a pilot double-blind randomized controlled trial with oxazepam. Journal of Clinical Pharmacy and Therapeutics. DOI PubMed
  2. RCTNgan A, Conduit R (2011). A double-blind, placebo-controlled investigation of the effects of Passiflora incarnata (passionflower) herbal tea on subjective sleep quality. Phytotherapy Research. DOI PubMed
  3. RCTDodd F, Kennedy D, Wightman E, Khan J, et al. (2022). The chronic effects of a combination of herbal extracts (Euphytose®) on psychological mood state and response to a laboratory stressor: A randomised, placebo-controlled, double blind study in healthy humans.. Journal of psychopharmacology (Oxford, England). DOI PubMed
  4. ReviewLakhan SE, Vieira KF (2010). Nutritional and herbal supplements for anxiety and anxiety-related disorders: systematic review.. Nutrition journal. DOI PubMed
  5. ReviewMeolie AL, Rosen C, Kristo D, Kohrman M, et al. (2005). Oral nonprescription treatment for insomnia: an evaluation of products with limited evidence.. Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine. PubMed