Hi there I looked all over the box for an expiration date and found nothing. I don't want to open the box because there are bids on the item and i did list it has unopened. I looked online to find out, and found nothing about it this brand. I did even know that the stuff did expire. Sorry couldn't of been more of a help! :)
The only one i found about really was Frontline and it has no exp date on box or tubes. Someone said they called and all Frontline said was it has a very long shelf life. Im just wondering if when they say 'very long' do they mean very long like Twinkies? :)