To apply a coupon code when purchasing Dr Tobias products on Amazon.com, you will proceed through the check out process until you arrive at the Select a payment method screen. Here you will see an area closer to the bottom that has a bold heading "Gift Cards & Promotional Codes".  When you click the link below, it will open up an area for you to put in our code to receive the discount. Please be sure that you order only 1-time pricing (and not subscribe & save) to use the coupon code, since multiple offers may not be combined with our promotional codes.