I understand that Herbalife says that their unopened products expire after two years. How long after expiration date can you REALLY use Herbalife products?

Many unopened Herbalife products have a two-year shelf life but can still be used a few months after their shelf life has expired. However, after a product's expiration date has come and gone, the produce will lose some of its potency. To gain the maximum benefit from the product, use before the expiration date.