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Closed comedones

Closed comedones are obstructions of the skin’s pores caused by an excess of sebum and dead skin cells. Unlike blackheads, they remain beneath the surface of the skin, forming small white bumps. An appropriate skincare routine can help prevent their formation and improve the appearance of the skin.
FAQ about closed comedones

What factors cause closed comedones?

Excess sebum, accumulation of dead cells and unsuitable cosmetic products can be responsible for closed comedones.

How can closed comedones be prevented?

To help prevent closed comedones, it is recommended to cleanse the skin daily, exfoliate it gently on a regular basis, and use non-comedogenic products.

Which ingredients are effective against closed comedones?

Salicylic acid, retinol and glycolic acid are effective at “unclogging” pores and eliminating closed comedones.

Can certain cosmetics trigger closed comedones?

Certain ingredients may be liable to induce closed comedones. However, the studies on this subject remain limited and their findings are not consistent.

Can excessive cleansing make closed comedones worse?

Yes, overly aggressive cleansing can irritate the skin and lead to reactive hyperseborrhoea, thereby worsening the problem.

How does a closed comedone progress?

Some closed comedones may resolve spontaneously. In other cases, the accumulation of sebum can continue and lead to a bacterial infection, resulting in inflammation. In the case of persistent closed comedones, it may be advisable to consult a dermatologist.

Where do closed comedones appear?

They are often located on the face, particularly the forehead, cheeks or chin, but may also appear on the back or décolletage, areas that are rich in sebaceous glands.

Are closed comedones a form of acne?

They belong to the so‑called retention lesions of acne, at the non‑inflammatory stage. That said, having one or two closed comedones on the face is not necessarily synonymous with acne.

Is it possible to extract a closed comedone?

Handling them is not recommended, as this may trigger inflammation or leave marks.

Is it possible to have closed comedones with dry skin?

Yes, because they are also linked to impaired desquamation and not only to an excess of sebum.

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