Oily scalp is normal and healthy as hair follicles releases sebacous glands (oil) to protect the scalp and hair. But an abnormally oily scalp that excessively release sebacous gland can feel like a problem as it makes your hair feel greasy or look dirty and limp all the time.

The overproduction of oil attracts dirt and bacteria, leading to itchy scalp and pimples. When left untreated, it can clog the hair follicles which eventually leads to hair loss.