How long do the wipes last after opening? Sarah Slate September 11, 2017 13:12 Updated Follow Your wipes will remain good as new and safe for little skin for up to six months after opening. Related articles Why are M&Y wipes biodegradable? How do I know that these wipes are suitable to use on my newborn baby or my baby with eczema-prone skin? What are your wipes made from? What are your delivery charges? What are your nappies made from? Comments 0 comments Article is closed for comments.