The most common third-party certification seals that appear on some dietary supplement products are (in alphabetical order) BSCG Certified Drug Free, Informed-Choice (or Informed-Sport), NSF Certified for Sport, and USP Verified.
These third-party certification seals confirm independent testing and evaluation of dietary supplements and their ingredients and ensure that manufacturing and storage facilities comply with GMP (or similar) requirements. The companies that conduct such reviews vary widely in terms of how they approach the certification process and how they test products. Certification programs confirm that a product contains the ingredients listed on the label. They do not ensure a product’s effectiveness or safety.
The seals of 3 of the organizations mentioned above (BSCG, LGC, and NSF) also ensure a product has been tested for and does not contain ingredients banned by the World Anti-Doping Agency (WADA). The 4th (USP) does not test for substances banned in sport, but they do verify the ingredients and their amounts in products. Note: All such testing is essentially a snapshot in time of a particular product and is no guarantee that future batches will have the same test results.
Updated 25 September 2018