Optimum Nutrition
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Mullein Leaf
Mullein Leaf
No reviews
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Regular price
$40.00 USD
Regular price
Sale price
$40.00 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 →
52/100
Rejected
Six-dimension breakdown
Evidence
48
Formulation
52
Manufacturing
52
Safety
60
Transparency
50
Sustainability
55
Why this scored 52/100
Mullein leaf (Verbascum thapsus) is a traditional respiratory-support botanical with long ethnobotanical history for cough and bronchial complaints. Modern clinical evidence in humans is thin — most references are traditional-use compendia (Commission E, WHO monographs) and in-vitro antimicrobial or expectorant activity. The active constituents (mucilage, iridoid glycosides, saponins) are not consistently standardized in commercial products, and no RCT has established a specific effective dose. The product is honestly named (single-ingredient, not proprietary blend), which prevents autofail — but Tailor Made Herbal Products does not publish per-serving mg, extraction ratio, or COAs at title level. Sits at 52 (Rejected band) reflecting a thin evidence base and thin disclosure combined; the ingredient itself has low safety risk and traditional-use plausibility.
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
- 52 / 100
- Tier
- Rejected
- Category
- Supplements
- Subcategory
- immune antioxidants
- Last scored
- Third-party certifications
- None on record at time of scoring
- Vendor
- Tailor Made Herbal Products
- Tags
- Shopify Collective, Tailor Made Herbal Products
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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