Due to a rapid increase in Demand, Canker Shield is temporarily only available to order through Amazon.com. Take advantage of the free $5 off coupon and free expedited shipping on Amazon. International orders also available through button below.

Buy Now On Amazon (US)
Buy Now International
Picture of the canker shield product with a badge that says "New and improved formulation", other badges say "Made in the USA", "best quality", "free shipping", and "money back guaranteed"