Most people have blackheads at some point in their lives, making them a fairly common skin problem. Blackheads are a mild form of acne that is caused by clogged hair follicles that turn black when exposed to air.
Causes of Blackheads
Each hair follicle in the human body contains a hair and an oil-producing gland. When oil, dirt and dead skin cells collect in the follicle opening, a bump in the skin, called a comedone, results. If the skin over the comedone opens, the air exposure will cause oxidization and turn it dark, resulting in a blackhead.
Many things can cause blackheads, which include: