Does Re-Lyte Immunity expire?

Re-Lyte Immunity doesn't expire, but it has a "best by" date that's two years after the time it's manufactured.

Re-Lyte Immunity doesn't expire, but it has a "best by" date that's two years after the time it's manufactured. We know all the "best by," "use by," "sell by" terminology you see on products can get confusing, so here's a quick explanation of what that means...

A "best by" date is different from an expiration date. It means that after this date, your Re-Lyte Immunity may begin to decline in flavor and effectiveness but is still safe to use.