Site-wide discounts and promotional codes may not be applied to holiday kits, value sets or virtual bundles unless the discount is specifically marketed to be applied to holiday kits, value sets or virtual bundles. For each unique promotion and/ or discount, you can easily reference the exact terms and conditions by visiting: https://www.drdennisgross.com/terms-conditions.html. Please note, the site does not support discount stacking and only 1 discount or promotion can be applied per transaction.