The Importance of Certification

In the last decade, the dietary supplements industry has grown rapidly. Unfortunately, the fast pace at which these products enter the marketplace leads the general public to question their quality and safety.

The media has reinforced many of these doubts through reports suggesting that some dietary supplements do not actually contain the ingredients or the ingredient quantities listed on their labels. These reports create confusion among consumers about which manufacturers are credible and which products are suitable for use.

A Truly Independent Program

NSF is the only independent, not-for-profit testing organization offering true product testing of dietary supplements. NSF does not simply evaluate test data submitted by manufacturers or analyze just a single sample of a product and give it our okay. We conduct product testing in our own accredited laboratories to ensure that the actual contents of the supplement product match those printed on the label.

Components of the NSF Certification Program

There are three main components of the NSF Dietary Supplements Certification Program:

Consumer Benefits

If you use a dietary supplement that has been certified by NSF, you can be confident that the contents of your supplement are being regularly checked by one of the most respected certifiers in the world.

With NSF certification, you get the continued assurance that only our ongoing testing programs can provide. Unlike some other programs, NSF conducts annual audits and periodically retests each dietary supplement product to ensure continued compliance against the toughest testing standard in existence today.

To locate a certified product, look for the NSF Mark on your dietary supplement or visit NSF's listing page for a list of NSF Certified supplements.

Dietary Supplements Mark