※ Expiration date: February 2028. Please see image 3. Brand new, unopened, just arrived. I bought too many, so I'm offering them to those who need them! The bad breath of my dog has drastically decreased. It's worth a try for first-timers too! Also, I'm very sorry, but I'm offering the best price from the start, so I'm afraid I can't accept price negotiations. Thank you for your understanding! Thank you very much!