They might operate in a way similar to Dr Lee. When you placed your first order, did you have to answer a few questions about your hairloss situation? If so, and assuming that they have a doctor on staff with the capability to write prescriptions, then that questionnaire might have been your 'consultation' that their Doctor used to issue you an online prescription for it.
However, this being the case, there is no price benefit as licensed US pharmacists have to sell drugs at the standard ripoff US rates. In effect, there's no benefit there as opposed to going to your own Doctor.