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Natural Foods Merchandiser
23 ways to vet supplement manufacturers in your store

23 ways to vet supplement manufacturers in your store

Use these tips to stock consistently high-quality supplements in your store. 

Frank Jaksch, founder and chief scientific officer of ChromaDex, an Irvine, Calif.-based proprietary ingredient manufacturer, knows from the inside what’s entailed in making consistently high-quality supplement ingredients and finished products.

As part of their due diligence, Jaksch recommends that retailers ensure the dietary supplements they sell:

  • Meet GMP requirements
  • Have had all ingredients 100 percent identity tested
  • Be free of contaminants
  • Meet the minimum specification for potency
  • Have been thoroughly tested at every level of production
  • Contain the appropriate amount of each ingredient for clinical effectiveness

Jaksch also advises asking manufacturers these questions:

  • Are your products (or ingredients) certified by USP, NSF or other independent entities?
  • Do you manufacture the products or do contract manufacturers make them?
  • If a contract manufacturer is used, are actual contracts in place withthat company?
  • Have you visited your contract manufacturer’s facility, and do youperform regular audits on that facility?
  • Has the FDA inspected your or your contract manufacturer’s facility?
  • Did FDA issue any 483s, warning letters or recalls after that inspection?
  • If so, what actions were taken to address the issues?
  • Do you use an independent lab to test the raw materials you source and your finished products?
  • Do you test ingredients for identity as well as potency? If so, can I see the results?
  • Are your lab’s testing methods up to date and scientifically validunder GMPs?
  • Do you test for heavy metals, contaminants and adulterants?
  • Have formulations—not just individual ingredients—been tested to ensure they are compliant with California’s Proposition 65 limits?
  • Do you have specifications in place for all finished products?
  • Do you test products as they are released?
  • Do you perform stability testing?
  • What criteria do you use in setting “expiration dates” for finished products?
  • If you use a contract manufacturer, do you work with that company to set specifications and select raw materials for your finished product?
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