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Look up any supplement.

Search a brand, product, or ingredient. The Codex reads real research doses and tells you what's effective, what's under-dosed, and what to watch for before you buy.

Not medical advice. This tool compares supplement ingredient doses to research-cited effective ranges. Verify medication interactions with your pharmacist or physician before starting any new supplement.

Have a bottle in hand? Paste the whole ingredient list at once — one ingredient per line with dose (like Creatine 5g or Vitamin D3 5000 IU) — and the Codex will analyze every one. For products the Codex hasn't indexed yet, cross-reference with the NIH Dietary Supplement Label Database.

Look up any supplement.

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