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