Just in case your not 100% satisfied with our system over the next 60 days, simply return the bottles for a full and hassle-free refund. No hard feelings whatsoever! All you need to do is contact us within the first 60 days of your purchase. You can even return the empty bottles and we'll still refund your money. Just contact our friendly customer support staff and they'll be happy to assist you. The contact information is right on the bottle.