Other Information: Store at room temperature. Misc: New. Peroxide free; formulated to whiten without irritation. Gentle; removes & prevents tough stains. Gentle on enamel; kills bad breath germs. No. 1 dentist recommended brand. For a healthy white smile: tough on stains; gentle on enamel. Use 2x a day to: whiten teeth safely; help prevent tooth decay. www.listerine.com. Made in Canada.