Biotene Mouthwash - Biotène Dry Mouth Oral Rinse is a fabulous mouthwash to use for new and irritated oral piercings. It's free of alcohol and sodium lauryl sulfate (SLS) and has an improved, neutral pH. Biotene also contains humectants and lubricants that soothe oral irritations and provide relief. Biotene is gentle enough to use everyday, even if you have a brand-new piercing. Rinse your mouth with Biotene mouthwash morning, night and after meals to keep your new piercing healthy and happy. Once your oral piercing has healed, you can continue using Biotene to clean your mouth, freshen your breath and avoid dry mouth.