Home science experiment: Does “Efferdent” (fizzy denture cleaner tablet) really clean my nighttime retainer or just a gimmick? I decided that since it was safe for cleaning my Invisalign retainer, I could try using it to clean my stained teacups (that don’t come clean in the dishwasher and have been bugging me). And result (see pix) is “yes, I guess I will def keep soaking my retainers”. And wow—amazing job. Might try again sometime with the generic drugstore brand. #tea #lifehack #retainers