It depends. Mostly, on how it was manufactured. I have been known to use some Lush products past the date. If the product is a butter that consists of oils only, I will use unless it begins to smell off. If product was manufactured by a small company and I have kept it refrigerated, looks okay and smells okay with no separation, I will use it. But for the most part, if it has a date, I do my best to make sure it's gone by then.