Optimum Nutrition
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BestBy10/25 Nutrivein Fadogia Agrestis Tongkat Ali Turkesterone 1100mg 120 Caps
BestBy10/25 Nutrivein Fadogia Agrestis Tongkat Ali Turkesterone 1100mg 120 Caps
No reviews
No reviews
Regular price
$11.40 USD
Regular price
$18.99 USD
Sale price
$11.40 USD
Shipping calculated at checkout.
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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 →
28/100
Rejected
Six-dimension breakdown
Evidence
25
Formulation
30
Manufacturing
50
Safety
30
Transparency
40
Sustainability
50
Why this scored 28/100
This SKU stacks three testosterone-narrative ingredients with severe evidence and safety problems: (1) Fadogia agrestis — zero human clinical trials, rodent studies (Yakubu 2005) documented dose-dependent testicular toxicity and kidney damage; (2) Turkesterone — one unpublished (never peer-reviewed) human study, on the WADA 2022 monitoring list, actual androgenic mechanism disputed; (3) Tongkat Ali — has some genuine T-support evidence at 200-400 mg standardized eurycoma, but combined here in an unspecified split. The '1,100 mg' total across three ingredients with no per-ingredient breakdown makes it impossible to know if any is at a meaningful (or safe) dose. 'BestBy10/25' framing suggests a stale-inventory Amazon flip. Autofailed under unverified_medical_claim (T-support without human evidence for two of three ingredients) plus proprietary_blend_hides_dose. Rejected 28.
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
- 28 / 100
- Tier
- Rejected
- Category
- Supplements
- Subcategory
- mens health, hormonal endocrine
- Last scored
- Third-party certifications
- None on record at time of scoring
- Vendor
- Deal US
- Product type
- Vitamins & Minerals
- Tags
- Deal US, 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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