OYAH INGREDIENT LIBRARY

Passionflower

Passionflower has small human trials for sleep and anxiety. The evidence base remains limited and preparation-specific.

Evidence reviewUpdated 11 October 2026
PSleep and stress / botanical extract
Evidence signalPreliminary; small trials
Research focusSubjective sleep, polysomnography and anxiety
Key qualifierExtract, population and study size

What it is

Passiflora incarnata is a botanical used in traditional calming preparations. Teas and concentrated extracts should not be treated as identical.

What human research suggests

Small randomized trials report changes in subjective sleep or selected polysomnography measures. A systematic review identified only nine clinical trials across several neuropsychiatric uses. Findings remain preliminary.

HOW THIS RELATES TO OYAH

Passionflower in an OYAH formula.

The related product page shows the current ingredient list and directions. Compare those details with each paper before deciding how closely the evidence applies. OYAH does not claim that the finished formula was tested in the linked studies.

Sleep & RestoreView Sleep & Restore
Ingredient studyTests a defined ingredient, preparation and protocol.Finished-product evidenceWould require a clinical trial of the complete formula.Certificate of AnalysisReports the tests shown for a sample or lot; it does not establish benefit.
SAFETY & CONTEXT

What to consider before use.

Passionflower may cause drowsiness, dizziness or confusion and may add to sedative effects. Avoid driving after use. Pregnancy use is not recommended without medical guidance, and perioperative use requires caution.

This guide is educational and is not medical advice. Speak with a qualified healthcare professional about pregnancy, breastfeeding, medical conditions, medicines, surgery or persistent symptoms.

READ THE SOURCES

Follow the evidence.

Each link opens the publication, indexed record or government guidance. Study findings remain limited to the preparation and protocol researchers examined.

  1. Passionflower in neuropsychiatric research2020 systematic review · PMID 33352740 ↗
  2. Passionflower for stress and sleep2024 randomized placebo-controlled study · PMID 38646244 ↗
  3. Passionflower and polysomnographic sleepRandomized placebo-controlled study · PMID 31714321 ↗
  4. Passionflower tea and sleep qualityDouble-blind placebo-controlled study · PMID 21294203 ↗
Current product directory

Know the product. Read the evidence.

Compare the current OYAH range, then open the product-specific evidence and ingredient guides. Ingredient studies do not establish the benefits of a finished OYAH formula.