Optimum Nutrition
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Organic Maitake Mushroom Tincture 2oz.
Organic Maitake Mushroom Tincture 2oz.
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Regular price
$29.95 USD
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$29.95 USD
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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 →
58/100
Standard
Six-dimension breakdown
Evidence
52
Formulation
62
Manufacturing
68
Safety
68
Transparency
60
Sustainability
72
Why this scored 58/100
Maitake (Grifola frondosa, "hen of the woods") has a legitimate research portfolio focused on beta-glucan-mediated immunomodulation. Its signature bioactive is the D-fraction and MD-fraction — proteoglycan-beta-glucan complexes that have been studied in Japanese and US oncology-adjuvant contexts (small trials showing NK-cell activation in cancer patients), and in metabolic contexts for modest glucose-tolerance effects. The general-population immune-support case is more suggestive than definitive: beta-glucans engage dectin-1 and complement receptor 3 on innate immune cells, but the translation to clinically meaningful outcomes in healthy adults is modest. Mycoterra's triple-extracted fruiting-body tincture is the right form for this category — it captures both the water-soluble beta-glucans (the primary immune-relevant fraction) and the alcohol-soluble triterpenes. Weakness: per-dose beta-glucan milligrams and D-fraction content are not disclosed. Standard tier reflects genuine sourcing and extraction methodology at a small US farm, tempered by modest general-population evidence and absent standardization disclosure.
Last scored: Full rubric →
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.
FAQ data has not been generated for this product yet. See the site FAQ for general questions.
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
- 58 / 100
- Tier
- Standard
- Category
- Supplements
- Subcategory
- immune antioxidants
- Last scored
- Third-party certifications
- None on record at time of scoring
- Vendor
- Mycoterra Farm
- Tags
- Mycoterra Farm, Shopify Collective
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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