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: Clinically proven. Kills germs by millions on contact. Use Soft Mint Listerine Antiseptic twice daily to help: prevent & reduce plaque; prevent & reduce gingivitis; freshen breath; kill germs between teeth. The ADA Council on Scientific Affairs' Acceptance of Soft Mint 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. www.listerine.com. This formula is not sold to any retailer as a store brand.