Does Toothpaste Expire?

Toothbrush
Does Toothpaste Expire?

I grabbed the toothpaste, squeezed out a bit of it onto my toothbrush and started brushing my teeth. How many times have I repeated this routine? Probably not enough, if you ask a dentist. I’m sure some geek has conducted a study to approximate that number, but what I really want to know right now is easier to answer. Does toothpaste expire? If so, why?

Day 133 of 366