I am selling this item. I purchased it here as an unopened package of 30 packets and only used 2 packets. Unfortunately, my cat doesn't seem to like it, so I am putting it up for sale. This is a dental care powder for dogs and cats that hardens when exposed to moisture over time. Contents: 28 packets Expiration date: June 2027 Recommended for those who want to try it. Returns are not accepted. Thank you.