At Nuun, we stand behind our products and quality controls. If for any reason you are not satisfied with a Nuun product you purchased from or one of our authorized sellers, you may request a refund or replacement product. Please note that because we are unable to control the quality of our products sold by unauthorized sellers, the Nuun 120-Day Satisfaction Guarantee is not available for products purchased from unauthorized sellers. The Guarantee is also limited to the original, end-user purchaser.

How To Claim The Guarantee

To submit a Guarantee request, please call one of our experts at 855-426-6886 (855-H2O-NUUN), email us at, or contact us through our website at and have information available regarding where and when you purchased your product. If your request is approved, you will then need to mail (1) your Nuun product (if you are requesting a refund) or a photo of your Nuun product (if you are requesting a replacement product), (2) a proof of purchase, and (3) your Guarantee approval confirmation number to:

Nuun & Company, Inc.
800 Maynard Ave. South
Suite 102
Seattle, WA 98134

You must submit your Guarantee request within 120 days of the date of purchase. Please note that you are responsible for costs incurred in mailing your product, proof of purchase, and other supporting information to Nuun.

Guarantee Guidelines

Nuun reserves the right to verify information, require a valid proof of purchase, and to deny Guarantee requests in its discretion in cases of suspected fraud or if customer has abused the Nuun 120-Day Satisfaction Guarantee.

If you have any questions regarding whether a seller is an authorized Nuun seller, please contact us at 855-426-6886 (855-H2O-NUUN) or