General questions about GNC products

What does USP mean?
What does USP <2091> measure?
What does USP <2040> measure?
What does GNC #4000 mean?
What does GNP #5015 mean?
Who certifies your products as Kosher?
Does GNC have an advisory board?
Should I keep my dietary supplements in the refrigerator?
Does the Pro Performance® Elite Series contain any hormones?
What is pharmaceutical glaze?

I've notice conforms to USP <2091> on the label, what does USP mean?

USP is United States Pharmacopeia. The USP helps to ensure quality by establishing state-of-the-art standards that pharmaceutical manufacturers must meet. The USP provides standards for more than 3,800 medicines, dietary supplements and other health care products.

Do you still have questions?  Contact GNC

Questions about specific GNC products
Answers to your specific product questions. Provides information on how to take a supplement, proper dosages, ingredients and much more.

General questions about GNC products
Do you have a question about GNC products in general? Look here for your questions on GNC quality and manufacturing.

Information on nutrition
Do you have a general question about nutrition in general. Look here for the RDA for vitamins and minerals, information on types of protein and more.

Information on dietary habits
Do you have a general question about daily dietary habits or are you just wondering what type of protein is best for you. Find your answer here.

Questions about your purchase
Provides information about refunds or exchanges, how to compliment a sales associate or contact us.

Questions about your Gold Card
Answers to all your Gold Card questions. Look here for benefits, how to sign up, change your address and more.

Other questions about GNC
Check here for frequently asked questions about the GNC Corporation.

GNC stores
How to find the GNC near you.

GNC email offers
Sign up for great GNC benefits and offers via email or remove your name from our email list.

1-877-GNC-4700 Contact GNC Terms & Conditions Privacy Statement About GNC Careers Investor Relations Affiliates
©1997-2016   General Nutrition Centers, Inc.