“#1 BEST-SELLING MUSHROOM BRAND IN THE US”
Evidence →The identifier is visibly present on the saved package image. Presence is confirmed; registry validity is a separate check.
Exact product checked · barcode not publishedHost Defense · checked Jul 21, 2026 · on sale since Jul 16, 2014USPTO returned 3 exact supplement-class owner records · inspect the identity trail
Quick read · Host Defense
Host Defense Mushrooms Lion's Mane
Checked against public sources on July 21, 2026 · LookCloser does not sell or recommend supplements.
120capsules · 60 servings
Does the marketing hold up?
FDA recall appears in this brand's history. An exact-product recall is a direct signal. A different product from the same firm is company context, not a strike against this item.
Is the dose real?Panel read — dose not verified3 ingredients listed; no advertised amount we could confirm against them
What a serving costsNo price found for this exact barcode
Is it tested?No testing claim made
Who’s behind it?USPTO lists 3 owner recordssame brand name, more than one registrant — we don’t choose between them
Is it the real thing?No barcode publishedso it can’t be matched against certification, recall or other retailer records
Trouble on record?Brand history — not this product
“Couldn’t verify” means we looked and found no public proof — not a mark against the product. Most supplement claims cannot be independently verified by anyone, so grey is the normal state of this industry.
1✓ checked out1△ support not foundno contradictions · brand-level recall on file
The label itself
What the Supplement Facts panel says
| Calories | 5 |
|---|---|
| Total Carbohydrate | <1 g |
| Lion's Mane (Hericium erinaceus) mycelium+/fermented brown rice biomass | 1 g |
Printed on the package: NON GMO · CERTIFIED ORGANIC · GMO · Certified B Corporation · VEGAN · GLUTEN FREE & VEGAN
We read 3 lines from the package photograph. It is our transcript of the label, not the manufacturer’s panel, and it may be incomplete.
Marketing claims, checked
The checks, one by one
1 promise checks out. 1 needs a closer look.
✓Matches the label1
△Claimed without support found1
“Studied”
Evidence →We found no named, citable study of this product or formula. The claim may rest on ingredient research rather than a trial of this product.
Quick read · 2 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Needs explanationAny trouble in public records?
FDA recall appears in this brand's history
An exact-product recall is a direct signal. A different product from the same firm is company context, not a strike against this item.
Evidence and sources
This recall is not about the product on this page. Fungi Perfecti LLC recalled a different product on February 28, 2019. FDA has since closed that case. The recalled item was “Host Defense MycoBotanicals Blood Sugar, dietary supplement, 500mg capsules, 60 ct per bottle, serving…”
Locked evidence record →Open the full source-linked findingPublic contextWho is behind it?
Registered owner records: Turtle Bear Holdings, LLC · Stamets, Paul
The public ownership record is ambiguous. We show the exact candidates instead of choosing one by name similarity.
Evidence and sources
USPTO returned multiple live supplement-class records for the exact brand wordmark: Turtle Bear Holdings, LLC, Stamets, Paul. These records answer who owns registrations for the brand; the separate product-to-owner or manufacturer link remains open.
Locked evidence record →Open the full source-linked findingWho owns the brand wordmark?
The brand has 3 exact supplement-class records
These are the USPTO records behind the brand name. We show them all rather than choosing one by similarity.
🇺🇸Turtle Bear Holdings, LLC
DELAWARE, USA · Registration 7337254
50 SE Nelson Road, Shelton, WASHINGTON 98584, UNITED STATES
Goods covered by this record
IC 030: Powdered coffee; powdered coffee also containing mushrooms, mycelium, or extracts thereof; instant coffee; instant coffee containing mushrooms, mycelium, or extracts thereof; mixes in the nature of powders for use in the preparation of coffee-based beverages; mixes in the nature of powders for use in the preparation of coffee-based beverages also containing mushrooms, mycelium, or extracts thereof; mixes in the nature of powders for use in the preparation of tea-based beverages; mixes in the nature of powders for use in the preparation of tea-based beverages also containing mushrooms, mycelium, or extracts thereof; hot chocolate mixes; hot chocolate mixes also containing mushrooms, mycelium, or extracts thereof; cocoa mixes; cocoa mixes also containing mushrooms, mycelium, or extracts thereof.; IC 005: Nutritional supplements; powdered nutritional supplement drink mix.
🇺🇸Stamets, Paul
USA; DELAWARE, USA · Registration 2506839
USA) DBA Fungi Perfecti; P.O. Box 7634, Olympia, WASHINGTON 98507, UNITED STATES
Goods covered by this record
IC 005: Nutritional supplements, namely, mushroom powders and products for fortifying the immune system.
🇺🇸Stamets, Paul
USA; DELAWARE, USA · Registration 5630909
P.O. Box 7634, Olympia, WASHINGTON 98507, UNITED STATES
Goods covered by this record
IC 005: Nutritional supplements; nutritional supplements, namely, mushroom powders and products for fortifying the immune system; liquid nutritional supplement; nutritional supplements, namely, Chaga (Inonotus obliquus) mycelium or Maitake (Grifola frondosa) mycelium or Reishi (Ganoderma lucidum s.l.) mycelium or Cordyceps mycelium or Royal Sun Blazei (Agaricus blazei f. blazei) mycelium or Enokitake (Flammulina velutipes) mycelium or Mesima (Phellinus linteus) mycelium or Turkey Tails (Trametes versicolor) mycelium or Oyster Mushroom (Pleurotus ostreatus) mycelium or Lion's Mane (Hericium erinaceus) mycelium or Artists' Conk (Ganoderma applanatum s.l.) mycelium or Oregon Reishi (Ganoderma oregonense s.l.) mycelium or Agarikon (Fomitopsis officinalis) mycelium or Amadou (Fomes fomentarius) mycelium or Shiitake (Lentinula edodes) mycelium or Maitake (Grifola frondosa) fruitbodies or Birch Polypore (Piptoporus betulinus) mycelium or Split Gill Polypore (Schizophyllum commune) mycelium or combinations thereof; and nutritional supplements, namely, Inonotus obliquus (Chaga) mycelium extract or Grifola frondosa (Maitake) mycelium extract or Ganoderma lucidum s.l. (Reishi) mycelium extract or Agaricus blazei f. blazei (Cordyceps mycelium extract or Royal Sun Blazei mycelium extract) or Flammulina velutipes (Enokitake) mycelium extract or Mesima (Phellinus linteus) mycelium extract or Turkey Tails (Trametes versicolor) mycelium extract or Oyster Mushroom (Pleurotus ostreatus) mycelium extract or Lion's Mane (Hericium erinaceus) mycelium extract or Artists' Conk (Ganoderma applanatum s.l.) mycelium extract or Oregon Reishi (Ganoderma oregonense s.l.) mycelium extract or Agarikon (Fomitopsis officinalis) mycelium or Amadou (Fomes fomentarius) mycelium extract or Shiitake (Lentinula edodes) mycelium extract or Maitake (Grifola frondosa) fruitbodies or Birch Polypore (Piptoporus betulinus) mycelium extract or Split Gill Polypore (Schizophyllum commune) mycelium extract or combinations thereof.
This answers who owns registrations for the brand wordmark. It does not by itself prove which entity made, imported, or sold this specific product. Open USPTO source ↗
Buying options
Where you can check or buy it
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Amazon
Submitted listing$47.21
Lowest New observed via Keepa on 2026-09-02.
View on Amazon ↗Brand website
Official storefrontNo price confirmed
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No defensible same-product page was saved from the brand catalog.
Check brand website ↗iHerb
Not confirmedNo price confirmed
No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
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No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
Search Target ↗Walmart
Not confirmedNo price confirmed
No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
Search Walmart ↗Prices and stock are point-in-time observations. Related pages are never used as product evidence. No affiliate links; LookCloser earns nothing from these sellers.
Want to inspect the evidence?
The full report shows every source, the exact unresolved question, and the documentation that would settle it.
Record built September 03, 2026. Sources: source listing observed at check time · USPTO Trademark Search · Keepa exact-listing history · NIH / published research · certification and regulator records where available. LookCloser publishes evidence and gaps; it does not advise for or against any supplement. Evidence-based corrections welcome.