LookCloser.aipublic supplement evidence
What remains open · Host Defense

Host Defense Mushrooms Lion's Mane

FDA recall appears in this brand's history

Rebuilt from public sources on July 22, 2026 · evidence availability is not a safety or effectiveness verdict.

What this means for you · What remains open

What the public record can establish

Brand-level context only, not a finding about this product. Fungi Perfecti LLC recalled a different or not-exactly-bound product on 2019-02-28: “Host Defense MycoBotanicals Blood Sugar, 60 ct. bottles, is recal…

Panel, decoded

What the label discloses

3declared rows
3separately quantified
0combined blend totals

The listing-image panel publishes an amount for each of its 3 declared rows. That supports ingredient-by-ingredient review; it does not verify the contents.

Panel rowAmount%DVWhat to notice
Calories5
Total Carbohydrate<1 g
Lion's Mane (Hericium erinaceus) mycelium+/fermented brown rice biomass+1 g

vision:google/gemini-flash-1.5 Amounts are shown as declared panel data, not independently lab-tested contents.

Public ownership records

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.

Review history
/ 5
not shownvisible ratings

Review counts rose gradually. Written-review counts rose from 789 to 823 across the observed period. That describes count movement, not review authenticity or product quality. A variation family may share some public counts.

Keepa exact-listing history · counts do not prove authenticity · variation family may share counts

What would settle the biggest open question?

Which exact USPTO registrant is tied to this product's brand use? Evidence that would settle it: exact-wordmark ownership record.

Read / share full evidence →
Open the full evidence trailSources, edge cases, and every unresolved check

Confirmed evidence

What checked out00

These checks found support in the public record. They confirm specific facts, not the product as a whole.

Nothing could be independently confirmed from the available record.

Documented concerns

What needs caution00

These are documented contradictions or claims that need more evidence. They are separate from missing data.

No contradictions or product-specific cautions were found at this check depth.

Unresolved public record

What is still missing05

We looked for these signals but could not settle them from public sources. A gap is not a strike.

Multiple USPTO brand-owner records are shown

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.

No data

FDA recall appears in this brand's history

Brand-level context only, not a finding about this product. Fungi Perfecti LLC recalled a different or not-exactly-bound product on 2019-02-28: “Host Defense MycoBotanicals Blood Sugar, 60 ct. bottles, is recalled due to undeclared wheat.” (status: Terminated). The recalled product was: “Host Defense MycoBotanicals Blood Sugar, dietary supplement, 500mg capsules, 60 ct per bottle, serving size 2 capsules per day. UPC: 6 33422 70474 6 (distributed in US) UPC: 8 ” — not necessarily the product on this page. Verify at FDA’s recall database.

No data

Multi-ingredient formula — panel read, serving weight unknown

We read the full Supplement Facts panel from the listing-image panel (below), but the label doesn’t state a serving weight, so the arithmetic can’t run. A gap in the label’s information, not evidence of a problem.

No data

This item belongs to a catalog variation family

The paid catalog links this exact item to a parent listing. Review counts on public product pages may be shared across sizes, flavors, or other variants, so the count history is listing context — not evidence that reviewers received or tested this exact variant.

No data

180-day review-count history is on file

Exact-listing history records written-review counts from 789 on 2026-01-23 to 823 on 2026-07-21 (net +34). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.

No data

What to ask and check

What would settle the open questions

Why is this shown?
Everything we couldn’t verify is something a person can still ask about. Rather than leave gaps sitting as dead ends, we turn each one into a specific question — the exact document, citation, or number that would settle it — plus the things you can confirm yourself with the bottle in your hand.

Ask the brand or seller

1

Which specific study supports this claim — and was it run on this exact formula?

Ask for the citation, how many people took part, the dose used, and whether the study tested this product or just one ingredient in it. Ingredient research is not product evidence.

2

What is the product’s UPC or GTIN?

The barcode is how a product gets matched to outside records — certification registries, label databases, recall data. Without it, almost nothing can be cross-checked.

3

Is this label filed with NIH’s Dietary Supplement Label Database (DSLD)?

Filing is voluntary, so absence proves nothing — but a filed label puts the full ingredient table on public record where anyone can read it.

Most brands and sellers publish a contact route. A clear answer adds evidence to the record; no answer leaves the question open.

Check for yourself — no one’s permission needed

1

Compare the panel on the bottle in your hand to the one shown in this record.

Ours was read from listing photos and can contain reading errors. The physical label is the source of truth — if they disagree, tell us and we’ll correct the record.

2

Check the lot number and expiry on the bottle against any COA you’re given.

A certificate that doesn’t name your lot doesn’t describe what you’re holding.

These are the open questions on this specific record — not a warning about the product, and not a suggestion to buy or avoid it. Getting them answered is how you decide for yourself.

Record built July 22, 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.