Depends on the type of earrings. Of course it's not good for them, but since I never take mine off, they get a daily dose of shampoo, soap and water. Sorry. (I can hear the collective gasp through the internet.) My daily pearls are AA quality. However, if your earrings are studs, it's doubly bad. The daily washing loosens the glue which holds the pearl on the stud posts quicker than usual. If your pearls aren't glued anywhere and aren't gem quality, I think you're good.