PACKAGE OR PRODUCT HAVING A USE INDICATOR

摘要

A product includes a container (112, 212, 312, 412, 512, 612, 712, 812, 912, 1012), and a use indicator (114, 214, 314, 414, 514, 614, 714, 814, 914) coupled to at least one of the container or a closure so that, upon removal of the closure from the container or upon removal of product from within the container, a coloration of the product changes irreversibly to indicate to a user that the product has been used. A method of producing the product, and a method of discouraging reuse of a container after opening of the container, are also disclosed.