You get a link. Connect Stripe, then share the link. When a different person pays after opening it, Stripe sends you 20% of that payment. A purchase made with your own email does not earn a share.
Tell people the urine drink changes with usage and with body type. Weight and a lighter, average, or broader frame set the water. Hair and saliva are different lists and are not sized by body. They download it and buy the ingredients. Nothing is mailed. The selling guide has lines you can copy.