One of my samples has a July expiration date(I have seen similar posts here also). I would say it is a very cost effective way to rid aging product versus sending it to a vendor, having it meet it's expiration date, and then be returned and all use of it lost. It would be similar to coupons provided by other companies for a free product when a new product is first introduced. I would hope they limit the samples at some point in time, but it is actually a very cost effective form of advertising. Have you taken advantage of the free samples yet?