Look for the mark and you'll find a safer product.
Are you concerned about the contents of your vitamins, minerals, herbs, botanicals, protein bars or other supplements? So are we.
In the last decade, the dietary supplements industry has grown tremendously. The fact that these products do not receive the same regulation as prescription or over-the-counter drugs raises questions in the minds of many consumers. That's why NSF became involved in developing the nation's first truly independent testing standard and product certification program strictly for dietary supplements.