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Send questions or comments using our online form, or send an email to  A DuPont representative will reply to your message.  These systems are for information, not placement of orders.

Customers located within the continental United States may also send questions or comments, and place orders, by calling toll free: 800-441-9593.


Payment by American Express, Visa, MasterCard or Discover is required for 100 gram packages.  Credit cards and purchase orders are accepted for larger packages. Customers who have not purchased Vazo® from DuPont within the past three years will be required to complete a brief safety review before shipment can be made.