´╗┐Manufactured in the United States, the BrushOnSmile teeth-whitening pen is used to whiten teeth on the go. It will whiten teeth and remove stains using the smallest amount of gel in the shortest amount of time; no more hassling with whitening strips, trays, and irritations. The pen contains 36% carbamide peroxide and kosher-grade glycerin, and no alcohol or animal biproducts are used. For more information, visit brushonsmile.com.