A nipple shield containing a luminescent agent that illuminates for visibility in darkened conditions. The nipple shield has a nipple portion and a base portion that extends from the nipple portion formed of a resin material such as silicone that contains the luminescent agent, such as a photoluminescent pigment. The base portion or an outer annular part can contain the luminescent agent. The nipple shield or only the base portion can be a formed film that has a resin material layer that contains substantially no luminescent agent, and a layer that contains the molded resin material and the luminescent agent. An illuminating nipple shield can also be a nipple shield rim containing the luminescent agent that conforms and adheres releasable to the base portion of a conventional nipple shield.