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: Controls tartar build-up. Kills plaque and gingivitis germs, keeps breath fresh for hours. Powerful dentist clean feeling up to 3x longer (vs. brushing alone). Clinically proven. Kills germs by millions on contact. Listerine UltraClean with Everfresh technology has the benefits of Original Listerine Antiseptic with an added tartar control ingredient. Plus, it provides a dentist clean, fresh feeling that lasts for hours. To Open: Squeeze smooth areas on cap and turn. To Close: Turn cap until it locks. www.listerine.com. This formula is not sold to any retailer as a store brand.