full reportFull record · lc-6b7d8a13 · back to the summary
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What this is. We compare what a listing claims against what public records show — label arithmetic, barcode registries, NIH’s label catalog, FDA enforcement data, certification registries, and published research. Every statement below traces to one of those.
What the states mean. Confirmed = an outside source agrees. Contradicted = an outside source disagrees. Caution = something needs explaining. No data = we looked and found nothing — a gap, not a strike.
What it is not. A clean record is not an endorsement and never proof a product works. A thin record is not an accusation. We publish evidence and gaps; the conclusion is yours. Nothing here is medical advice.
Something wrong? Every figure is meant to be checkable — sources are named and linked. Send a correction and we’ll fix the record.
The listing-image panel publishes an amount for each of its 3 listed rows. That supports ingredient-by-ingredient review; it does not verify the contents.
| Panel row | Amount | %DV | What to notice |
|---|---|---|---|
| Calories | 5 | — | |
| Total Carbohydrate | <1 g | — | |
| Lion's Mane (Hericium erinaceus) mycelium+/fermented brown rice biomass | 1 g | — |
FDA rules (21 CFR 101.36) require the amount of each dietary ingredient per serving unless hidden in a listed “proprietary blend” (legal, but a transparency yellow flag). A label stating no amount at all is non-compliant — a checkable red flag. This panel states amounts; the open question is whether those listed amounts are independently verified and how they compare with relevant research.
vision:google/gemini-2.5-flash Amounts are shown as listed panel data, not independently lab-tested contents.
Every check we ran
Confirmed evidence
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
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
We looked for these signals but could not settle them from public sources. A gap is not a strike.
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.
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 size 2 capsules per day. UPC: 6 33422 70474 6 (distributed in US) UPC: 8”. FDA recorded the reason as “Host Defense MycoBotanicals Blood Sugar, 60 ct. bottles, is recalled due to undeclared wheat”. Verify at FDA’s recall database.
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.
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.
Exact-listing history records written-review counts from 768 on 2025-08-06 to 836 on 2026-08-31 (net +68). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.
What to ask and check
Ask the brand or seller
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.
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.
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
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.
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.
What the listing promises — claim by claim
| Claim | Status | What we found |
|---|---|---|
| Clinical-evidence claim “…Clinically Studied…” | No evidence located We looked for: a named, citable clinical study of this product or formula | 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. |
| Benefit claim “Host Defense Mushrooms Lion's Mane - Supplement Capsules for Brain Health Support - Mushroom Support for Focus & Memory Function - Immune & Nervous System Supplement - 12” | Not checked yet We looked for: whether the ingredient doses on the label match the doses used in published research | Ingredient-level evidence for this formula isn’t in our knowledge base yet. Recorded as not checked yet — not as a negative. |
“No evidence located” does not mean a claim is false — it means the seller has not put evidence proportionate to the claim on the public record, and we could not find any. Absence of proof is not proof of absence.
Verifiability profile — 2 of 6 public signals
What this listing gives the public to check. Publishing these signals doesn't prove quality — but withholding them means claims can only be taken on faith.
Identity
| LookCloser record ID | lc-6b7d8a13 (internal — no barcode published, which limits cross-checking) |
| Brand | Host Defense |
| Source listing identifier | B00OVF9DVM |
| Retailer listing title | Host Defense Mushrooms Lion's Mane - Supplement Capsules for Brain Hea… show full titleHost Defense Mushrooms Lion's Mane - Supplement Capsules for Brain Health Support - Mushroom Support for Focus & Memory Function - Immune & Nervous System Supplement - 120 Capsules |
| USPTO brand-owner record | Turtle Bear Holdings, LLC · DELAWARE, USA · registration 7337254 · 50 SE Nelson Road, Shelton, WASHINGTON 98584, UNITED STATES |
| USPTO brand-owner record | Stamets, Paul · USA; DELAWARE, USA · registration 2506839 · USA) DBA Fungi Perfecti; P.O. Box 7634, Olympia, WASHINGTON 98507, UNITED STATES |
| USPTO brand-owner record | Stamets, Paul · USA; DELAWARE, USA · registration 5630909 · P.O. Box 7634, Olympia, WASHINGTON 98507, UNITED STATES |
From the label (photo-read)
| Serving size | 2 capsules |
| Servings per container | 60 |
| Pack statement | 120 CAPSULES |
| Badges printed on pack | NON GMO, CERTIFIED ORGANIC, WASHINGTON STATE DEPARTMENT OF AGRICULTU, GMO, Certified B Corporation, VEGAN, GLUTEN FREE & VEGAN, #1 BEST-SELLING MUSHROOM BRAND IN THE US |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Calories | 5 | High clearly legible in the photo |
| Total Carbohydrate | <1 g | High clearly legible in the photo |
| Lion's Mane (Hericium erinaceus) mycelium+/fermented br | 1 g | High clearly legible in the photo |
Claims printed on the packaging:
“made with organic mushroom mycelium” · “DIETARY SUPPLEMENT” · “MEMORY & NERVE SUPPORT” · “The ONLY Mushroom Supplement Brand Founded by Paul Stamets!” · “Building better health since 1980.” · “POWERED BY MUSHROOM MYCELIUM™” · “Immunologically Supportive*” · “Unique Compounds”
Read by a vision model from 7 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
Where it sells
We found a brand storefront, but we could not match any price on it to this exact product when we checked.
Brand store hostdefense.com: 41 supplement products (+22 merch items) — for comparison, single-focus brands typically carry 5–30 products; very broad catalogs are common among companies that rebrand ready-made formulas — a pattern note, not a verdict.
Reference links for identification only — LookCloser has no affiliate relationships and earns nothing from any link on this page.
Ingredient science
No knowledge-base entry yet for this formula's active ingredients — entries are added as the KB grows. Absence of a science card is a coverage gap, not a judgment.
Record lc-6b7d8a13 · built September 03, 2026 · lookcloser.ai · corrections@lookcloser.ai