All orders are processed by aspiring or retired athletes

Orders are processed and shipped from 4:00 am to 12:00 pm EST Monday through Friday

Orders placed after 12:00 pm EST will be processed the following day

Return Policy

If you are not completely satisfied with your purchase, simply return the unopened product to us for a full refund, less shipping and handling charges. Refunds are valid for 30 days from the purchase date of the product. 
Once you receive a return authorization number (RMA) from customer service, please indicate the RMA number on the outside of the box or package where visible. Without this RMA number, the processing of your return may be delayed.
Once your package is received back to our warehouse, please allow 14 days for processing your return and one billing cycle for the credit to appear on your statement.
Your credit card statement may show Lifespan International US/Xendurance as the credit company.
For all return inquiries and to obtain an RMA number, please contact: or 480-470-2171

Return Shipping Address

203 S Smith Rd, #103
Tempe AZ 85281


Delivery confirmation (tracking) is included for free on all domestic shipments

Free 2-3 day shipping on all retail orders over $100 & all bundles

Fedex Ground / Home Delivery (5-7 day delivery) will be the preferred shipping method for packages weighing over 12 lbs

*First Class Mail for orders under 1lb suggests 1-5 day business day delivery time but is usually delivered in the same planes/trucks as Priority Mail and is known to be delivered as promptly as Priority Mail orders


Xendurance has preferred e-commerce rates via DHL Express (2-3 day shipping worldwide) and will handle duties & taxes

For European orders please visit:
For France orders please visit:

Xendurance is also sold globally to over 220 countries on