TEEN ACNE: Why some people get more than others?

The exact cause is not known, Androgen hormones can play a role as

they increase during puberty. They make the skin's oil glands get larger and make more sebum

Genetics - If your parents had acne, you may have inherited that tendency.

Medications (for epilepsy medication, prednisone, androgens taken as medicine, and lithium) can cause acne.

Cosmetics that have a greasy consistency may also clog pores. Water-based products are better than oil-based makeup.