Optimum Nutrition
THE BIOHACKING STANDARD
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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 →
"Ultimate Libido" fails on two grounds: (1) superlative marketing language ("Ultimate") is unsubstantiable — no supplement can honestly claim to be the ultimate anything, and the phrasing is characteristic of FTC-non-compliant supplement marketing; (2) female sexual desire supplement category is thinly supported in clinical evidence — maca has modest RCT data (Dording 2015 in antidepressant-associated sexual dysfunction), Tribulus terrestris has small trials (Akhtari 2014 in postmenopausal women, mixed results), but nothing approaches the substantiation of prescription options (flibanserin, bremelanotide) for hypoactive sexual desire disorder. Proprietary blend format hides per-active dose. Auto-failed under proprietary_blend_hides_dose and would arguably trip unverified_medical_claim for the "ultimate" superlative combined with libido claim.
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.
FAQ data has not been generated for this product yet. See the site FAQ for general questions.
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.
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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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