Make sure that the medical director is board certified in dermatology and that at least one other doctor is also board certified. Qualifications vary from state to state. California, for example limits those who can do laser hair removable to licensed MDs, RNs, or Nurse Practitioners. Electrologists, medical assistants, and other unlicensed persons may not perform this procedure. Experience also counts so ask the clinic how many treatments they have done.
Is permanent hair loss guaranteed?
No. Permanent hair loss is the usual outcome but results vary from person to person and permanent hair loss cannot be guaranteed.