Because dietary supplement packaging is relatively easy to print, fraudulent companies often slap counterfeit verification logos onto their labels. A seal printed on a bottle is never proof on its own; true authenticity must be verified through the certifying body.1. Search the Official Certifier DirectoryEvery legitimate third-party certifying body maintains a live, searchable public database. If a product carries a seal on its label but does not appear in the official online directory, the seal is fake or unauthorized. * NSF Certified for Sport®: Search the official database on nsfsport.com or download the NSF Sport App to scan the barcode directly on your smartphone. * USP Verified (United States Pharmacopeia): Search the directory at usp.org. Crucial check: The label must explicitly say “USP Dietary Supplement Verified” alongside the shield. Phrases like “USP Grade” or “Formulated to USP Standards” only refer to raw ingredient source claims, not third-party product certification. * Informed-Choice / Informed-Sport: Search by brand name or product on wetestyoutrust.com. * ConsumerLab.com: Search their testing reports at consumerlab.com (requires a membership or product search).> Important: Certification is item- and flavor-specific. A brand may certify its Vanilla Whey Protein, but its Chocolate flavor or Creatine line might not be certified. Search for the exact product name and flavor.> 2. Match the Lot / Batch NumberFor anti-doping and strict quality programs (like NSF Certified for Sport or Informed-Sport), testing occurs on a batch-by-batch basis. * Locate the Lot Number / Batch Code and Expiration Date stamped on the bottom or side of the bottle. * Look up the lot number in the certifier’s database or on the manufacturer’s official testing page. * Verify that the lot code on your physical bottle matches a confirmed, passed testing run in the database.3. Spot Visual Red Flags on the Label| Genuine Certification Signs | Counterfeit / Misleading Red Flags ||—|—|| Registered trademark symbols (\text{®} or \text{™}) next to official logos | Subtle spelling variations or altered seal shapes/colors || Specific program wording (e.g., “Dietary Supplement Verified”) | Generic statements like “100% Lab Tested” or “FDA Approved” || Clear reference to an independent certifier | Vague phrases like “Made in a cGMP Facility” without a named certifier || Exact match in the official certifying database | Missing from the certifier’s online database |(Note: The U.S. FDA regulates supplements, but never approves individual dietary supplements or packaging. Any supplement claiming to be “FDA Approved” is using illegal, misleading marketing.)4. Request a Certificate of Analysis (COA)Reputable brands that invest in legitimate third-party testing will provide a Certificate of Analysis (COA) upon request or post lot-specific COAs directly on their site.A genuine COA should: * Come from an accredited, independent ISO/IEC 17025-certified laboratory (not an in-house report). * Display the lab’s official letterhead, contact info, and signatures. * List specific test results for identity, heavy metals (lead, arsenic, cadmium, mercury), microbials, and relevant drug/steroid screens.If a brand refuses to provide a COA or claims their test results are “proprietary,” treat the product with suspicion.