Head and shoulders hair loss is a form of alopecia specifically characterized by circular patches of discrete bald areas on the human scalp, resembling the shape of a head and shoulders.
Due to its common and easily identifiable nature, head and shoulders hair loss has been utilized to study the effects of drugs and treatments on hair growth. It has provided valuable data on hair growth patterns, treatment efficacy, and disease progression. Historically, in 1986, the discovery of a topical zinc solution yielded promising results in treating head and shoulders hair loss.




