H&C Animal Health’s products are made with the highest quality ingredients and are independently audited by the National Animal Supplement Council (NASC). You can expect innovative, natural solutions that are safe, affordable, and effective for your pet. If you are not satisfied with an H&C Animal Health product you purchased from us or one of our authorized sellers in the United States, you may request a refund or replacement product within 60 days of the date of purchase. Unless otherwise prohibited by law, the Guarantee is not available for products purchased from unauthorized sellers because they are outside of our quality standards. The Guarantee is also limited to the original, end-user purchaser in the United States.