It is fine to use the product and will still work after the expiration date (see below) if it hasn’t been left open for any length of time that would allow something unhealthy to enter it from your environment. If you know you purchased it in the last 2years and/or it’s been sealed when not used or still sealed, it should be work fine and safe. The expatriation date for powders or bars refers more to freshness.
FYI: The definition of an expiration date for nutritional products such as ours, is that the product must be within 10% of label claim of each ingredient on the last day, meaning it’s still at declared potency. That said, our pills and powders have a 2yr expiration and fine to use after the date because the only issue might be that they are a little less potent, which is something that would only happen well after the published date.