Not medical advice · Not affiliated with any certification program
Supplement Seal Check

How to verify a product on each registry

A logo on the tub isn't proof. Look up the product (and, where offered, the lot or batch number) on the program's own site. [1] [2]

Step by step

NSF: search the Certified for Sport directory by product, company or lot number. [3]

Informed Sport: search the exact batch number on its website. [1]

BSCG: search the database; a lot not listed has not been tested. [2]

USP: use the Verified Product Finder. [4]

Informed Choice: product pages list all tested batch numbers. [5]

Sources

  1. Informed Sport (LGC) — Frequently Asked Questions retrieved 2026-10-27
  2. BSCG — Third-party Certified Supplement Products database retrieved 2026-10-27
  3. NSF — Certified Products Search retrieved 2026-10-27
  4. USP — USP Verified Mark retrieved 2026-10-27
  5. Informed Choice (LGC) — The 4 Steps to Informed Choice Certification retrieved 2026-10-27