Blackheads: Causes, Treatments – Acne and Rosacea Society of Canada

“Blackheads, also referred to as “open comedones” are small spots on the skin which surface when oil and dead skin clog the skin pores. When that spot remains closed, a whitehead bump forms (closed comedones). If the spot opens and is exposed to air, it becomes a blackhead. Blackheads appear most commonly on the face, but also on the back, chest, neck, arms and shoulders.” Continue to read here.


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