CORSODYL - ALCOHOL FREE is an alcohol-free oral care mouthwash designed to be used as a short-term solution alongside a good daily oral care routine. The active ingredient is chlorhexidine digluconate which is an antibacterial agent that reduces the formation of dental plaque and is used to treat, prevent gum disease (where gums may bleed when brushed). You may also use it to help gums heal after dental surgery.