If SweatBlock does not dramatically reduce your underarm perspiration, please email email@example.com within 30 days of receiving your order to initiate the refund process. Our guarantee applies to overall effectiveness for underarm sweating and not the “duration of effectiveness”, as individual results will vary based on body chemistry. Qualified refunds will receive the purchase price minus shipping and handling. Only one refund per customer. The refund amount is limited to the price of 1 box of SweatBlock unless additional boxes are returned. Refund must be requested within 30 days of delivery. While many customers find success with other body parts such as hands, feet, face, back, etc., our guarantee does not apply to those usage areas.