Acne, the term for what’s commonly called pimples or zits, occurs when oil, bacteria, and dead skin cells clog hair follicles. People with oily skin may be more susceptible to pimples because of their acne-prone skin, but breaking bad habits can still help them — and everyone else — prevent acne.
1. Dead Skin Cells Build up
The skin sheds a layer of dead skin cells. Few dead skin cells get stuck to the sebum causing blockage of pore. These pores block cause pimples.