Ensuring Quality of Dietary Supplements

HealthPricer.com will help you ensure that the supplements you purchase are of the highest quality. The food supplement industry is regulated by two types of agencies.

  • The Food and Drug Administration (FDA) strictly regulates health claims made about all dietary supplements and the labels on them in the United States. An FDA Certification does not evaluate for, or regulate, either quality or efficacy of supplements.
  • Third Party Certification Bodies have developed strict criteria for standards regulation which evaluate and authenticate the quality of a supplement, its ingredients, dosage levels, label claims and the manufacturing facilities themselves. Organizations such as the United States Pharmacopoeia (USP), the Natural Nutritional Foods Association (NNFA), and NSF International have each developed strict manufacturing standards that help to ensure that the consumer is getting a good quality, effective product.

Manufacturers and distributors have supported these top certification bodies in their efforts to promote quality, efficacy and maintenance of the highest product standards available in the market. The supplement industry is voluntarily working to certify their products in an effort to help consumers make informed and educated decisions.

About Certifications

In an effort to alleviate confusion about certification and regulation of dietary supplements, HealthPricer.com identifies products that have been awarded these valuable certifications with their corresponding seal of approval.

Search for your favorite supplement and let HealthPricer.com identify the manufacturers, products or ingredients that have been evaluated, helping you select products of the highest quality.

Use this page as a resource to better understand the industry’s leading independent certification bodies and their programs. Learn about what each certification seal means by clicking on the seal for a detailed description of the program. Be confident when you make your supplement purchase.


Nutritional Supplement Certifications

NSFNSF Dietary Supplements Product Certification
NSF Dietary Supplements
Product Certification
NSF GMP Manufacturer Registration
Manufacturer Registration
NNFANNFA GMP Manufacturer Certification
Manufacturer Certification
USPUSP Verified Supplements Product Certification
USP Verified Supplements
Product Certification
USP Verified Ingredients Product Certification
USP Verified Ingredients
Product Certification


Certification BodyNSF – Dietary SupplementNSF – GMPUSP Supplement VerifiedUSP Ingredient VerifiedNNFA – GMP
Program established in20031994200220041999
Number of certified products in program85447309>2052
Certifies Product**
Certifies Ingredient*
Certifies Manufacturer**
Inspect Facility – Demonstrate conformance to currently recommended industry GMPs for dietary supplements.*****
Verify the identity & quantity of dietary ingredients declared on label+***
Ensure the product does not contain undeclared ingredients or unacceptable levels of contaminants.***
Test dissolution*
Test disintegration**
Fine Chemicals***
Amino Acids***
Sports Supplements*
Concentrates, Metabolites, Constituents or Extracts*
Manufacturer pays a fee for service*****
Requires membership in organization*
Voluntary participation*****
Non-voluntary participation
Provides a certification or other mark on product label****
Information about products available on website****
Frequency of certificationbiannualbiannualannualannualannual


+ Label review generally refers to whether a product meets all the formal aspects required by FDA regulations and whether the identity of the product�s ingredient(s) contains what is claimed on the label.