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 →
TUDCA (tauroursodeoxycholic acid) is a bile acid derivative with legitimate pharmaceutical use as a liver-support compound. It is UDCA (ursodiol) conjugated with taurine, delivering similar cholestasis-reducing and hepatocyte-protective effects. TUDCA has Grade B evidence for liver support in specific clinical contexts (cholestatic conditions, drug-induced liver injury adjunct) at 500-1500 mg/day, and Grade C evidence for the biohacker-adjacent 'liver support during PED cycles' use case that drives its bodybuilding-space marketing. InnovaPharm's TUDCA is a single-active supplement. The critical variables are (1) actual TUDCA content vs. UDCA or nicotinamide substitution (the TUDCA supply chain has quality issues), and (2) per-capsule dose. InnovaPharm does not prominently publish per-lot identity testing. Standard tier — legitimate ingredient class, brand-level documentation is modest.
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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