Detailed answer

Blackheads, also known as open comedones, are caused by clogged hair follicles with a mix of oil, dead skin cells, and bacteria. These clogs occur in the skin pores and not on the scalp. The use of improper hair products may contribute to scalp issues like dandruff or irritation, but it doesn't directly lead to blackheads. Blackheads are typically found in areas with a high concentration of oil glands, such as the face, especially the nose, chin, and forehead. To prevent blackheads, it's important to maintain a good skincare routine that includes cleansing, exfoliating, and using non-comedogenic skincare products suitable for your skin type.