To answer your question about how much Kybella is in each vial, the standard is 2mL vials and 0.2mL given at each injection site about 1cm apart. Depending on how much submental fat is present, the company recommends (based on their FDA approval) anywhere from one to a maximum of five vials to be used on a single treatment day. For many people, two vials per treatment is a good place to start but you can always start with less and see how it goes!