They are clogged or plugged hair follicles or pores formed by the mixture of skin cells and sebum that can be categorized as open (blackheads) comedones and closed (whiteheads) comedones.
They are clogged or plugged hair follicles or pores formed by the mixture of skin cells and sebum that can be categorized as open (blackheads) comedones and closed (whiteheads) comedones.