A unified index of third-party supplement certifications. Certification status is
aggregated from each certifying body's own public listings. We report factual
certification status only — this is not medical or efficacy advice. Always verify
current status with the certifying body before relying on it. See our methodology.
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This never affects which brands we list or how they're ranked; rankings reflect factual
certification data only. Fullscript links are provided as a trusted practitioner channel and
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Certification bodies