A money-back guarantee is a promise made by a seller or company that allows customers to return a product for a full refund if they are not satisfied. This assurance helps build trust between the buyer and the seller, as it reduces the risk associated with purchasing a product. Customers can feel more confident trying new items, knowing they can get their money back if the product does not meet their expectations. These guarantees are commonly used in various industries, including retail, e-commerce, and services. They often have specific terms, such as a time limit for returns or conditions for eligibility. Overall, money-back guarantees can enhance customer satisfaction and encourage repeat business.