I have a bottle of Unique E that has probably been around since 2005...what is the shelf life of this product?  The bottle is still sealed, by the way. The shelf life of nutritional supplements is indicated near the UPC code on the label. There is normally a date stamp that shows the month and year of “recommended” expiry. We use a 2-year time stamp by regulation. However, because UNIQUE E® is pure, our products have no fillers, diluents, vegetable oil, or other additives that may turn the product rancid. We have product on our shelves that has been around for 5-10 years (and more) and it is still good. What turns vitamin E rancid (causing it to expire) is the additional oils contained along with the vitamin E.?  As mentioned before, we do not have any extra oils – it is pure vitamin E oil that does not turn rancid. One of the best ways to check you capsules is to bite into one – it should have a mild bland taste. We are confident that your bottle of UNIQUE E® is just as beneficial as when we encapsulated it.