I have used this product on some dining room chairs that are at least 12 years old and have never been properly cleaned. I figured they were probably done and most of the stains had healed and I would have to buy some new chairs. I saw the Trinova leather cleaner and thought I'd at least try it before spending money on new chairs. I was totally amazed! On the first try the cleaner removed most of the stains and the chair looked great! Keep in mind the chairs are 12 years old so they didn't look like new but they certainly looked good and this product saved me a lot of chair replacement costs.