12 Common Symptoms of Blackheads

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Open Blackheads

Blackheads are skin lesions caused by excessive sebum production, often seen in individuals with oily or combination skin. This excess sebum can clog pores, trapping impurities and dead skin cells. We categorize blackheads into two types: open and closed.

Open comedones typically appear on the nose and surrounding areas. They form when sebaceous glands become blocked, leading to an accumulation of dead skin. When these blockages reach the surface, they darken due to the oxidation of the proteins.

Black dot appearance and smooth surface characterizes open pimples. The black color results from a chemical reaction involving the oxidation of sebum components, specifically fatty acids and keratin.

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