Hi again, Dr. Ellie,
Hope you are well.
As I was putting out a new tube of Crest last night I noticed the tube has an expiration date on the crimp! Who knew?? One of my stash had an expiry of early 2009 (purchased in 2010). I checked the other products, and only Listerine also has an expiration, clearly marked on the back of the bottle. (To be clear there’s no date on the ACT or Closys.)
Just passing this along to your readers who might also be in the dark; I didn’t find this info anywhere on your very thorough site.
Thank you, we will put this information up on our site and blog!