Why do common household items (shampoo, toothpaste, medicine, etc.) have expiration dates and what happens once the expiration date passes?

Question

Why do common household items (shampoo, toothpaste, medicine, etc.) have expiration dates and what happens once the expiration date passes?

In: Other

Answer 1

(Addition to the other comments)

I agree with other replies. Also though, sometimes it’s just a messed up way companies try to persuade you to trash and repurchase a product you already bought.