Optimum Nutrition
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Evergreen Apothecary +Energy Tincture combines green tea, ginkgo biloba, and goji berries for energy and cognitive support. Ingredient-by-ingredient: green tea contains caffeine (~30-50 mg per cup) and L-theanine, with real evidence for calm-alertness and modest metabolic effects; ginkgo biloba at 120-240 mg standardized to 24% flavone glycosides and 6% terpene lactones (EGb 761) has evidence for cognitive support in age-related cognitive decline (Zhang 2016 Cochrane review found mixed evidence for dementia, better data for mild cognitive impairment) and specific cerebrovascular indications; goji berries have modest antioxidant data and traditional-use precedent but limited RCT support for specific energy claims. Green tea + ginkgo is a defensible energy/nootropic combination direction. Per-herb dose not disclosed. Standard tier for coherent ingredient rationale with real evidence base for green tea and ginkgo.
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.
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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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