Guides
What certification means for a supplement manufacturer, what each certification covers, and how to check one yourself. Each guide cites the certifier’s or regulator’s own pages.
- What is a certified manufacturer?
What “certified manufacturer” means for supplements: who certifies facilities, what FDA does and doesn’t do, and the four questions to ask about any claim.
- Supplement manufacturing certifications explained
GMP and 21 CFR 111, NSF/ANSI 455-2 and 173, Informed Manufacturer, TGA, Health Canada, USDA Organic and ISO 9001: what each covers and who issues it.
- How to verify a manufacturer’s certification
Six steps to check a supplement manufacturer’s certification at the source: where to look up NSF, TGA, Health Canada, Informed, USDA Organic and ISO.
- What is the best certification for a supplement manufacturer?
No single certification is best. Which one matters depends on where you sell and what buyers ask for: US GMP, TGA, Health Canada, sport and organic.
Search the directory or read how we verify each listing.