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Returns and Exchanges

No problem! Unopened products that you've had for less than 30 days can be returned to:

Nutritional Institute, LLC
PO Box 7010
Grayslake, IL 60030

Important Note: You may return an unopened item for a full refund at any time within 30 days of purchase given it is in original condition and unopened. Opened items and refrigerated products (i.e. probiotics) may not be returned. If we receive opened items or refrigerated products, they will be discarded, and no refund will be issued.

Please enclose a copy of your packing slip or a copy of your order from your online Order History on your Nutritional Institute website account.

Only what you actually paid for the product(s) minus all applied discounts will be credited back to your account. Please allow us time to both process the return(s) and post the credit back to your card.

Please note that we are unable to guarantee specific results from our supplements. We do, however, guarantee that the products we offer are of the highest quality obtainable.

These items must be unopened and in new condition. Returns of products that have special shipping restrictions imposed by the U.S. Department of Transportation cannot be accepted; the detail page for these products will indicate if these restrictions apply.

Some Health & Personal Care products are not returnable, including:

  • Cholesterol monitors
  • Diabetic/glucose monitors
  • Fragrances
  • Sex & Sensuality items
  • Thermometry
  • Rx Products
  • Special Order items (as indicated on product pages)
  • Heat Sensitive Items

Price Changes

All prices are subject to change without notice. Not liable for errors or omissions.

If the item you purchased from Nutritional Institute isn't returnable, you'll see a message about that in our Online Returns Center. If you have a problem with one of these items, please contact Customer Service.

We are unable to accept returns older than 30 days.

We are proud of the quality of our products and want to make sure you are completely satisfied. Your satisfaction of our product is completely guaranteed.

Thank you for your business with Nutritional Institute. Life is good, but better when you and your pets are healthy.


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