All About Acne Causes

Author: Mark Farley
Source: ezinearticles.com
Certain biological variations in the pilosebaceous units, or the skin structure consisting of a hair follicle and its connecting sebaceous gland, in the skin, cause an inflammatory disease called acne. “Acne Vulgaris” is the most common form of acne and it usually appears during adolescence.
Excessive oil in the human body causes acne. [...]