Colgate Peroxyl Mouth Sore Rinse helps cleanse and promote healing of minor oral irritations. Peroxyl s oxygenating action helps remove oral debris to facilitate healing of oral sores irritations mouth burns and provides a whole mouth clean after a daily regimen of brushing and flossing. Peroxyl also soothes minor gum inflammation from dental procedures dentures and orthodontic appliances. This great-tasting formula is alcohol free.