Host Defense Lion's Mane
Host Defense Lion's Mane
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Organic Lion's Mane mycelium, the functional mushroom most associated with cognitive and nervous-system support.
- 1000 mg organic Lion's Mane per serving
- US-grown mycelium on organic brown rice
- Vegan, gluten free
- Non-GMO Project Verified
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
The full picture
Everything Vyvata knows about this product — the score, the evidence, the FAQ, and where else to find shopper reviews. No hidden data. Every vendor is scored on the same published rubric — no brand can pay for placement. Read the rubric →
Six-dimension breakdown
Why this scored 57/100
1000 mg organic Lion's Mane mycelium grown on brown rice. Human evidence is limited — Mori 2009 showed cognitive benefit in older adults but at higher doses using fruiting-body extract, not brown-rice mycelium substrate. The mycelium-on-grain format is contested because a large fraction of mass is the substrate, not the mushroom. Non-GMO Project Verified, Paul Stamets brand with strong sustainability posture. Standard — mechanistically plausible but evidence-thin at this format.
Evidence & sources
The Vyvata score's Evidence dimension measures the quality of published RCT support for a product's active ingredients at the label dose. Our source hierarchy: double-blind RCTs in MEDLINE-indexed journals > single-blind RCTs > open-label trials > observational studies > mechanism papers > N=1 case studies (anecdotes). Predatory journals and manufacturer-authored studies without independent replication are weighted down.
Product-specific evidence citations for this item are embedded in the analysis text on the "Analysis" tab. For the full framework and evidence hierarchy, see the methodology page.
How to read the Evidence dimension
- 80–100: Multiple double-blind RCTs in indexed journals directly testing this product OR the exact ingredients at the exact dose.
- 60–79: Single double-blind RCT + supporting ingredient literature at the studied dose.
- 40–59: Open-label trials + ingredient literature; no product-specific double-blind evidence.
- 20–39: Ingredient literature only; no product-specific trials or trials in predatory venues.
- 0–19: No credible evidence base or unverifiable claims.
Frequently asked questions
Auto-generated from Vyvata's scoring data for this product. For general questions about the store (shipping, returns, wholesale), see the site FAQ.
What is Host Defense Lion's Mane?
Host Defense Lion's Mane is a product from Host Defense, categorized under Cognitive health & nootropics in the Supplements vertical. It is scored on the Vyvata Scoring Framework — an independent 6-dimension rubric applied uniformly to every product Vyvata lists.
How does Host Defense Lion's Mane score on the Vyvata rubric?
57/100 overall — Standard tier (50–69 band). Per-dimension breakdown: Safety 75, Sustainability 70, Transparency 65, Manufacturing 60, Evidence 45, Formulation 45. Scored as of 2026-07-31.
Why did Host Defense Lion's Mane score in the Standard tier?
1000 mg organic Lion's Mane mycelium grown on brown rice. Human evidence is limited — Mori 2009 showed cognitive benefit in older adults but at higher doses using fruiting-body extract, not brown-rice mycelium substrate. The mycelium-on-grain format is contested because a large fraction of mass is the substrate, not the mushroom. Non-GMO Project Verified, Paul Stamets brand with strong sustainability posture. Standard — mechanistically plausible but evidence-thin at this format.
What are the strongest and weakest aspects of this product?
Strongest: Safety at 75/100 (adverse-event profile, interaction risk, and dose ceiling) and Sustainability at 70/100 (sourcing practices, packaging, and corporate practice). Weakest: Evidence at 45/100 (quality of published RCT support for the active ingredients at the label dose) and Formulation at 45/100 (dose adequacy, bioavailability form, and ingredient redundancy). All six dimensions feed the overall Vyvata score; a weakness on any one dimension pulls the overall down proportionally.
Is Host Defense Lion's Mane third-party tested?
Third-party certifications on record: Non-GMO Project Verified. These contribute to the Manufacturing dimension score. Always check the current product label for the most up-to-date certification information.
Are there higher-scoring alternatives to Host Defense Lion's Mane?
The top-ranked cognitive health & nootropics product in the Vyvata catalog is currently Nordic Naturals Ultimate Omega 2X – High-Potency Fish Oil | 2150 mg EPA & DHA | Lemon Flavor, 120 Softgels at 87/100. See the full ranked list of 113 scored products in this subcategory at https://vyvata.com/pages/best-cognitive-health-and-nootropics-supplements-ranked.
What does the Vyvata score mean?
The Vyvata Scoring Framework rates every listed product 0–100 across six dimensions: Evidence, Formulation, Manufacturing, Safety, Transparency, and Sustainability. Tier bands: Elite 85–100 (top-tier evidence + formulation + manufacturing), Verified 70–84 (strong on most dimensions), Standard 50–69 (solid but with weaknesses called out), Rejected 0–49 (specific failures documented). Rejected products remain listed with reasons. Full methodology at https://vyvata.com/pages/methodology.
Where can I read customer reviews for Host Defense Lion's Mane?
The Vyvata score measures product integrity against a published rubric, not customer sentiment. For customer reviews and community discussion, search external platforms directly: Amazon (https://www.amazon.com/s?k=Host%20Defense%20Host%20Defense%20Lion's%20Mane),Google(https://www.google.com/search?q=Host%20Defense%20Host%20Defense%20Lion's%20Mane+reviews),Reddit(https://www.reddit.com/search/?q=Host%20Defense%20Host%20Defense%20Lion's%20Mane%20review),andTrustpilot(https://www.trustpilot.com/search?query=Host%20Defense%20Host%20Defense%20Lion's%20Mane).Vyvatadoesnotaggregate,republish,orlicensethosethird-partyreviews.
Customer reviews
Reviews on other platforms
The Vyvata score measures product integrity against a published rubric, not customer sentiment. Vyvata does not aggregate, republish, or license third-party reviews — the links below open search pages on their respective platforms.
All the data we have on this product
Every VSF-related metafield surfaced verbatim. Nothing hidden. If you spot data that looks wrong, let us know.
- VSF score
- 57 / 100
- Tier
- Standard
- Category
- Supplements
- Subcategory
- cognitive nootropics
- Last scored
- Third-party certifications
- Non-GMO Project Verified
- Vendor
- Host Defense
- Product type
- Mushrooms
- Tags
- cognitive, focus, lions mane, mushroom
Every score is set from the published rubric, audit-logged, and rescored whenever new evidence emerges (published trials, updated labels, third-party testing releases). Every vendor is scored on the same criteria — no pay-to-play. See our editorial-independence disclosure for the full policy, including brands with an editorial relationship to this site.
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