Blackheads: What Are, Types, Causes, and Skin Care

What Are Blackheads?

Blackheads, commonly referred to as comedones, are skin lesions that consist of a mixture of sebum, sweat, dirt, and keratinized epidermal cells that accumulate in enlarged pores. The characteristic black dots on the nose and other areas of the face (known as open comedones) form when the outlets of the sebaceous glands near hair follicles become clogged. They can also manifest as white lumps filled…