Other Information: Store at controlled room temperature 68-77 degrees F (20-25 degrees C). Cold weather may cloud this product. Its antiseptic properties are not affected. Misc: Kills germs that cause bad breath, plaque & the gum disease gingivitis. TSA compliant. Air travel approved size. ADA Accepted: American Dental Association. www.listerine.com. The ADA Council on Scientific Affairs' Acceptance of Listerine Antiseptic is based on its finding that the product is effective in helping to prevent or reduce gingivitis and plaque above the gumline, when used as directed. Council on Scientific Affairs, American Dental Association. Questions? Call toll-free 888-222-0182 or 215-273-8755 (collect).