In order to get the recommended supplements you may need, you must register (ONLY ONCE) at www.nutri-dyn.com, as "Patients" under account number 100746. Then you can create a user ID and password, after which you can simply log in to order products easily. Nutri-Dyn distributes ONLY to established doctors/health professionals, so this step is necessary to allow the public direct access to 1500 professional-quality products. If you experience any problem with this process, please call Nutri-Dyn and order by phone: 800-444-9998. You will need the account number here as well (100746).