Graded evidence · verifiable badge
Evidence Ledger
Every ingredient's real evidence, graded by study quality with sample sizes shown, on a tamper-evident citation trail. Compare two products by evidence, not marketing — and verify a product's grade badge by recomputing its hash.
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The label scanner is a mock adapter (no OCR vendor / no secrets). Type a seeded product name or its barcode.
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The badge is a product's evidence grade (A–F, or Insufficient): a sample-size-weighted average of each ingredient's strongest study. A higher grade means more and better-designed studies — not an endorsement or a health claim.
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AI can be wrong. Not medical, legal, or financial advice.
Not medical advice. Grades reflect the quality and quantity of published evidence for an ingredient — not a health claim, endorsement, or guarantee of effect. An absent study is reported as insufficient, never as proof a thing does or does not work. Talk to a clinician before changing any regimen.