Although sebum is important for skin health, overactive sebaceous glands are often the root causes of acne. In order for acne to form, 2 things need to occur:
Excessive production of sebum
Blockage of hair follicle
Comedones, whiteheads and blackheads are usually the direct result of the clogging of the hair follicles. When the clogged pores are colonised by bacteria, inflammation occurs and acne forms.
It is these overactive sebaceous glands which Gold PTT treatment targets.