Biotene moisturizing mouthwash helps provide protection against dry mouth, freshens breath without burning, is alcohol free and contains beneficial enzymes found in saliva to help maintain the oral environment.for relief of dry mouth, new improved ph balance alcohol free, soothing moisturization helps provide protection against dry mouth. Biotene moisturizing mouthwash helps provide protection against dry mouth. It is an oral rinse with a soothing gentle feel that helps clean, refreshens, relieves dryness and soothes oral irritations.