It’s true: toothpaste does, in fact, come with an expiration date—even though few people consider it a perishable item. A toothpaste that’s past its prime may begin losing effectiveness, even if it doesn’t look or taste drastically different.
Does toothpaste really expire?
The American Dental Association now requires any toothpaste that carries containing fluoride to provide an expiration date.
Toothpaste past its expiration date may be less effective—some fluoride won’t bind with tooth enamel, reducing the toothpaste’s ability to strengthen teeth and defend them against cavities. Another result may be viscosity issues, such as toothpaste that is more difficult to squeeze through the tube.