Black Heads

Black heads are small, dark lesions that appear on the skin, often on the face and neck. They are a feature of mild acne, but they can appear without other signs of acne being present.

Black heads are a type of comedo. Comedones occur when the pores in the skin become plugged with dead skin cells and an oily, protective substance known as sebum.

When these pores are plugged, the dead skin cells in the open pore react with oxygen in the air and turn black, forming a black head.