Got this for my husband. He still wears his retainers every night after having to have two rounds of braces. Once as a teenager and once after we were married. I felt like the retainers could use some love. He used the device and was impressed with the results. We didn’t use the detergent because we felt that was unhealthy for something going in his mouth. The water was visibly dirty after we did a 5min round! LTKMens LTKFamily LTKKids