Home care, (commonly referre to as domiciliary care), is health care or supportive care provided in the patient's home by healthcare professionals (often referred to as home health care or formal care; in the United States, it is known as skilled care) or by family and friends (also known as caregivers, primary caregiver, or voluntary caregivers who give informal care). Often, the term home care is used to distinguish non-medical care or custodial care, which is care that is provided by persons who are not nurses, doctors, or other licensed medical personnel, whereas the term home health care, refers to care that is provided by licensed personnel.