Our mouthguard cleaning spray contains peppermint extract and sodium citrate. It can easily remove dirt and bacteria from your braces and keep them clean and hygienic. Its use is simple: take the braces out of your mouth and spray each tray with 12 pumps of cleaning spray. Apply the spray solution evenly to all parts of the brace. Place the retainer back in your mouth and bite gently, exhaling any excess water or liquid. And it can effectively remove stains and bacteria on the surface of the braces, and maintain a fresh breath for a long time.