ZenCortex comes with a 100% money back guarantee – a full 60 days from original purchase. If you are not completely satisfied with our product or its results within the first 60 days, simply let us know by calling our toll free number or sending us an email and we will be happy to give you a full refund within 48 hours of the product being returned. That's right - simply return the product, even empty bottles, anytime within 60 days of purchase and you'll receive a full, no-questions-asked refund (minus and included shipping fees).