Contact us within 30 days by email at support@cani-wellness.com and once confirmed, return the unused portion of the product to Cani-Wellness at 350 Sonic Avenue Livermore, CA 94551  If we receive a returned product within 30 days, we will issue a full refund, less any shipping charges and a 10% disposal/restock fee.  Allow up to 30 days for processing refunds.