Premature hair loss, or Seborrheic Alopecia (SA), is a common health problem that many Hong Kong people face. Patients with this disease have notable scalp seborrhea and significant itching, often accompanied by excessive dandruff, greasy hair and other symptoms. The disease is more common in men than in women. Men often notice a receding hairline or hair thinning at the top of their head, women often notice a widening of their part. In the early stage, hair loss often starts