BOTANICAL IDENTITY
The right name is the first step.
Also known as: No synonyms listed.
A common name and photograph do not guarantee identification. Check the botanical name and part indicated on a traceable product.
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.
Urinary disorders associated with benign prostatic enlargement
Traditional use in adult men, after a medical assessment excluding another cause.
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?
Small-flowered willowherb appears alongside E. angustifolium in a traditional framework concerning certain urinary symptoms associated with benign prostatic enlargement, after medical diagnosis. An effect on a prostate marker in the laboratory proves neither reduced prostate volume nor treatment of cancer. The aerial parts and their preparation remain the subject of this entry.
Constituents to know.
Their presence and quantity depend on the plant part and preparation.
- Oenotheins and polyphenols
- The report particularly explores oenotheins A and B. These tannins and their metabolites must not be treated as equivalent to the whole infusion.Read the reference
Enzyme-related research directions
Isolated molecules have been studied on enzymes such as 5α-reductase and aromatase. In vitro inhibition does not demonstrate a clinical hormonal effect of E. parviflorum.
Read the referenceTraditional urinary comfort
The guidance concerns support for symptoms already assessed, not a diagnosis based on the plant being sought.
Read the referenceWhat this means for preparation.
Read the part “flowering plant/aerial parts” and the full name. A result from an E. angustifolium extract must not become an identical promise for this species.
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.
Molecular data and botanical scope
- Type of research
- EMA assessment of experiments on willowherb compounds and preparations
- Preparation concerned
- Isolated oenotheins and different materials from the Epilobium group.
- Observed results
- Several enzymatic or cellular targets have been explored.
- Limitations to consider
- The report provides no separate clinical evidence for E. parviflorum; cellular concentrations and exposure after herbal tea are not equivalent.
What can we take from this?
Urinary retention, blood or rapid worsening is not a situation for trying herbal tea. Results on cancer cells establish no anticancer indication.
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.
InfusionAerial parts · Route: oral
Preparation described in the shared monograph.
Please note: Follow the product's package leaflet; concentrations 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 the plant.
Medicine interactions
- The selected data do not allow compatibility with your treatments to be guaranteed. Ask a pharmacist to check.
Adverse effects
- Stop use if an unexpected reaction occurs; limited data do not mean absence of risk.
Pregnancy & breastfeeding
The selected indication concerns adult men; no use during pregnancy or breastfeeding is proposed.
Children & adolescents
Medicinal use is not recommended under 18 years; 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.
No home recipe is provided in this profile. For an appropriate preparation, refer to the product leaflet and ask your pharmacist for advice.
07 · CHECK THE SOURCES
Sources for this profile.
- EMA — epilobii herbaAccessed on 09/10/2026
- EMA — final assessment of willowherb aerial partsAccessed on 09/10/2026
Illustration: Krzysztof Ziarnek, Kenraiz · CC BY-SA 4.0. View the original image and its licence. Image resized and converted to WebP.
A TOUCH OF SOLÉA
Myriam’s tip
Myriam is reviewing the tip for this profile.
Myriam
