BOTANICAL IDENTITY
The right name is the first step.
Also known as: No synonyms listed.
Results for a hops–valerian mixture do not automatically apply to hops alone.
An illustration is not enough to identify a plant for consumption. Do not forage for a species based solely on this profile.
01 · UNDERSTAND
Properties & uses.
Relaxation and sleep
Traditional use for mild stress and to aid sleep; clinical effectiveness is not established for all products.
Read the sourceThe traditional uses described are not clinical proof of effectiveness. Evidence for one preparation cannot automatically be applied to another.
02 · UNDERSTAND THE ACTION
How does the plant act?
Hops are documented through their female inflorescences, or strobiles, for mild stress and to aid sleep. The evidence is difficult to interpret: many human studies use a combination with valerian. Their result cannot be attributed to hops alone. Experiments suggest several contributors to a sedative effect, but the mechanism and benefit specific to each form remain incompletely established.
Constituents to know.
Their presence and quantity depend on the plant part and preparation.
- Bitter acids, volatile fraction and xanthohumol
- These fractions are discussed in hypotheses of sedative action; none alone predicts the effect of a cup of strobiles.Read the reference
- 8-prenylnaringenin
- This compound has experimental estrogenic activity. This does not validate hormonal use of all hop preparations.Read the reference
Mild stress and sleep
European use of hops alone is traditional. Aiding sleep should not be confused with a proven treatment for every form of insomnia.
Read the referenceCombinations with valerian
Results for a combined product primarily inform us about the combination: they demonstrate neither the isolated contribution nor the synergy of hops.
Read the referenceWhat this means for preparation.
Read the full composition before relating a product to a study. Neither beer nor an extract enriched in hormonal compounds reproduces a herbal tea or a medicine made from strobiles.
03 · EXAMINE THE EVIDENCE
What the research shows.
A laboratory or animal result alone does not demonstrate a benefit in humans. Each result must be read alongside the preparation studied and its limitations.
An attribution obstacle
- Type of research
- EMA assessment report on clinical and preclinical studies.
- Preparation concerned
- Hop extracts alone in the laboratory; fixed hop–valerian combinations in several human trials.
- Observed results
- The report highlights the absence, in its body of evidence, of insomnia trials with hops alone as the active treatment.
- Limitations to consider
- The exact contribution of hops to a mixture remains undetermined.
What can we take from this?
Experimental hormonal activity does not prove a benefit for menopause. Potential drowsiness and precautions with other sedatives must still be considered.
Documentary review dated 09/10/2026. The references remain available to check the context.
04 · CHOOSE A PREPARATION
One plant, several preparations.
Only forms documented in this profile’s sources are presented.
InfusionFemale inflorescences (strobiles) · Route: oral
Dried, comminuted strobiles.
Please note: Follow the product's package leaflet; preparations are not interchangeable.
Read the sourcePowder or extractFemale inflorescences (strobiles) · Route: oral
Documented powder and dry or liquid extracts.
Please note: Follow the product's package leaflet; preparations are not interchangeable.
Read the source05 · BEFORE ANY USE
Precautions & contraindications.
This guidance does not cover every individual situation. Missing information is not a guarantee of safety.
Contraindications
- Allergy to hops.
Medicine interactions
- No established interaction is included in this entry; this does not guarantee compatibility with a treatment.
Adverse effects
- Adverse effects insufficiently documented in the sources used here.
Pregnancy & breastfeeding
Pregnancy and breastfeeding: medicinal use is not recommended because of insufficient data.
Children & adolescents
Not recommended under 12 due to insufficient data.
If symptoms persist, worsen or are unusual, consult a healthcare professional. In an emergency, contact the emergency services.
06 · PUTTING KNOWLEDGE INTO PRACTICE
Preparations & recipes.
A DOCUMENTED PREPARATION
Hop infusion — an evening preparation
Traditional use to aid sleep. Evidence for particular valerian combinations cannot be transferred to this infusion of hops alone.
Plant part: Dried cut female strobiles
Ingredients & quantities
- 0.5–1 g dried cut female strobiles of Humulus lupulus L.
- 150 ml boiling drinking water
Preparation steps
- Check the botanical name and plant part on a quality-controlled herbal tea; weigh the herb.
- Pour 150 ml boiling drinking water over the herb in a heatproof container.
- Steep for 5–15 minutes unless the product leaflet says otherwise. This is the EMA glossary’s general method; the monograph gives no preparation-specific time.
- Strain, then allow to cool to a comfortable temperature before drinking.
Use: EMA sleep reference: one dose 30–60 minutes before bedtime; the monograph gives 150–200 ml water. Seek advice if difficulties persist beyond 2 weeks or worsen.
Storage: Prepare immediately before use, following the EMA glossary. The monograph provides no domestic storage period; do not prepare a stock batch.
Before you start. For adults aged 18+ in this collection. Not recommended during pregnancy or breastfeeding because sufficient safety data are lacking. Contraindicated with hop allergy. May impair alertness: do not drive or use machinery if affected. Ask a pharmacist before combining with sleeping medicines or other sedative products. Stop if an adverse effect occurs. No interactions are reported in this monograph; this does not establish compatibility with medicines. Ask a pharmacist if you take medication.
07 · CHECK THE SOURCES
Sources for this profile.
- EMA — Lupuli flos: assessment and documentsAccessed on 09/10/2026
- ANSES — summary of precautions for food supplements (June 2023)Accessed on 09/10/2026
- EMA — assessment report on Humulus lupulus, strobiles, revision 1Accessed on 09/10/2026
- EMA — Humulus lupulus L., flos: monograph, preparation and precautionsAccessed on 09/10/2026
- EMA — Glossary on herbal teas: general methods, §4Accessed on 09/10/2026
Illustration: Flora von Deutschland, Österreich und der Schweiz — Otto Wilhelm Thomé (1885), via Wikimedia Commons · Public domain. View the original image and its licence. Image resized and converted to WebP.
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