Piptoporus betulinus · Birch Polypore · Razor Strop Fungus
500 mg · vegan · gluten-free · 60 caps
Affiliate link · we earn from qualifying purchases. No paid placements.
Willow bracket (Piptoporus betulinus) is a bracket fungus that grows exclusively on birch trees. It was found among the belongings of Ötzi the Iceman (3,300 BCE), suggesting prehistoric medicinal use. Modern research confirms antimicrobial and antiproliferative properties in its extracts.
Willow bracket produces bioactive polysaccharides, triterpenes, and phenolic compounds with broad antibacterial activity and selective cytotoxicity against cancer cell lines. It also demonstrates anti-quorum sensing activity, disrupting bacterial biofilm formation and communication.
Adults interested in traditional medicinal mushrooms with antimicrobial properties. Primarily of historical and research interest—no robust human clinical data exists.
No major contraindications at typical doses. Those with birch pollen allergy may theoretically react. Not recommended during pregnancy due to lack of safety data.
Pick a depth — minimum to maximal coverage
No full stack configured.
Click individual supplement pills above to buy each on Amazon India.
✓ Can be taken anytime
✓ Can be taken anytime
✓ Take with meals to improve absorption and reduce GI discomfort
Willow bracket produces bioactive polysaccharides, triterpenes, and phenolic compounds with broad antibacterial activity and selective cytotoxicity against cancer cell lines.
Each bar = one cited trial. Effect varies by methodology, dose, and population.
Healthy adults cohort over 6 months (n≈80)
Average upper respiratory infections in control group: 2.0/month.
In vitro
→ Ether and ethanol extracts from cultured P. betulinus mycelium decreased viability of colorectal adenocarcinoma LS180 cells with low toxicity to normal colon epithelium CCD 841 CoTr cells
In vitro
→ First successful indoor cultivation of P. betulinus fruiting bodies. Water and ethanol extracts showed antiproliferative and antimigrative properties against colon, lung, and breast cancer cell lines
In vitro
→ Comparative study context: willow bracket and related birch polypores share antimicrobial and antiquorum sensing mechanisms with Chaga, supporting the broader bioactive potential of birch-associated polypores
C · Promising in vitro antiproliferative and antimicrobial data; no human clinical trials. Historical significance (Ötzi) exceeds modern clinical evidence
A plain-English read of the literature behind this supplement. Not a clinical recommendation.
Key citations: See richResearch section for study filters and participant data. Clinical evidence summarised from peer-reviewed journals.
How to use Willow Bracket specifically for Infection risk — the right dose, timing, blood markers to track, and how to know if it is working.
A clinical evidence review of Willow Bracket — RCT data, effect sizes, evidence grade, and what the numbers mean for your specific situation.
Everything you need to know about Willow Bracket — mechanism, dose, safety, buying guide for India, and what the research actually says.
SacredBod's longer take on Willow Bracket — context the structured blocks above don't capture.
Willow bracket (Piptoporus betulinus) is a bracket fungus that grows exclusively on birch trees. It was found among the belongings of Ötzi the Iceman (3,300 BCE), suggesting prehistoric medicinal use. Modern research confirms antimicrobial and antiproliferative properties in its extracts.
Willow bracket produces bioactive polysaccharides, triterpenes, and phenolic compounds with broad antibacterial activity and selective cytotoxicity against cancer cell lines. It also demonstrates anti-quorum sensing activity, disrupting bacterial biofilm formation and communication.
Who benefits most
Adults interested in traditional medicinal mushrooms with antimicrobial properties. Primarily of historical and research interest—no robust human clinical data exists.
Dosage and form
500 mg is the typical effective range. Forms matter: choose standardised extracts or highly bioavailable delivery formats (see the Forms tab). Take as directed.
Side effects and cautions
Generally well-tolerated. Avoid if you: No major contraindications at typical doses. Those with birch pollen allergy may theoretically react. Not recommended during pregnancy due to lack of safety data..
The evidence
Human clinical trials and mechanistic research support the use of Willow Bracket for its primary indication. See the Research tab for full citations and study summaries.
Peptides are physician-only. Tell us a bit and we'll route you to the right specialist.
