Apira Science Inc. is so confident that you will be satisfied with the iGrow®, we will guarantee your complete satisfaction of the iGrow® Hair Regrowth System for a period of 6 (six) months from the original date of purchase. In order to qualify for this money back guarantee, you must use the iGrow® 3-4 times per week as instructed in the owner’s manual for six consecutive months. If in the unlikely event you want to return your iGrow® after this 6 month period, you will have 30 days to request a RMA number to return your iGrow®. Returns must be accompanied by the original purchase receipt. Only retail orders placed directly through Apira Science, Inc. or through our website are eligible for this money back guarantee. All other orders must be returned to the original vendor. To process your Money Back Guarantee, follow instructions 1 and 2 in the Warranty Service Section to obtain a Returned Material Authorization (RMA) number.