Every supply of Gluco-Solve comes with our 30-day Money Back Guarantee. If Gluco-Solve does not meet your expectations, you can return it within 30 days of the order date for a full refund of the product price. To return Gluco-Solve, you must first call us at 1- 877- 836- 8351 or email: RMA@herbancy.com, and you will be given a Return Merchandise Authorization (RMA) number. To receive your refund, you must postmark your return within 35 days of the order date. Be sure to clearly write the return merchandise authorization (RMA) number on the outside of the box. Our shipping department is NOT allowed to accept any packages without an RMA number. After the shipping department receives your return, it generally takes your bank 3-5 business days or less to process your refund.