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How to read a supplement label

Updated October 2026 · How we review

Use this checklist with any product, in a store or online. Check each box the label meets.

The extract is standardized, with active compounds and percentages listed Milligrams per serving are clearly stated It has a third-party testing seal (USP Verified or NSF) The plant part is named (root, berry, leaf or fruiting body) It does not use a proprietary blend that hides amounts It does not claim to cure, treat or prevent a disease

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These links open Amazon search results so you can compare labels using our checklist. We have not lab-tested these products.

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Important: These statements have not been evaluated by the Food and Drug Administration. Products discussed are not intended to diagnose, treat, cure or prevent any disease. This site is for general information only and is not medical advice. Talk with your doctor or pharmacist before starting a supplement, especially if you are pregnant or breastfeeding, take medication, or have a health condition.