Supplement Cert Directory

GTI USA, LLC

Is GTI USA, LLC third-party tested?

Yes — as of 2026-08-17, GTI USA, LLC holds 13 third-party certifications across 1 independent testing program: NSF (dietary supplement certification). Every certification below links to the certifying body's official listing so you can verify it at the source.

Registries checked (as of 2026-08-17): Informed · NSF · USP · Labdoor · BSCG

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