Vitamins, minerals and other dietary supplements are very self-stable and when stored properly, can last for years. We sell our products before the date of expiration to assure you get the full 100% potency of the product. This is why we put expiration dates on our bottles. As a matter of fact, the FDA does not require us to put expiration dates on the products at all, we choose to do this to guarantee what is stated on the label is accurate and to ensure the potency. Although the items on sale have expiration dates that are fast approaching, they are guaranteed to be just as potent on their expiration date as they were when they were first manufactured.