NeuroQuiet comes with a 100% money back guarantee – a full 90 days from your original purchase. If you are not completely and completely satisfied with our product or its results within the first 90 days, simply let us know by calling our toll-free number or emailing us and we will be happy to give you a full refund within 48 hours of product be returned. That’s right – simply return the product, even your empty bottles, at any time within 90 days of your purchase and you’ll receive a full refund, no questions asked (minus shipping and handling fees).