Comedones: where do they come from?
Comedones form due to several factors:
- Excessive sebum production: people with oily skin tend to produce more sebum, which can easily lead to clogged pores.
- Dead skin cells’ accumulation: if the skin is not regularly exfoliated, dead skin cells can build up and mix with sebum, forming a blockage.
- Hormonal factors: hormonal fluctuations, such as those occurring during puberty, pregnancy, or due to certain medical conditions, can increase sebum production and dead skin cells’ retention (keratinocytes).
- Use of certain cosmetic products: using comedogenic cosmetics production can contribute to pore clogging.
It is important to note that, contrary to popular belief, comedones do not form due to dirt, but rather from the accumulation of sebum and dead skin cells. Excessive cleansing can actually worsen comedones by irritating the skin and stimulating even more sebum production.
Sebum plays an important role in forming and maintaining the skin’s hydrolipidic film. This film prevents skin dehydration, supports the balance of the skin’s microbiome, and improves skin comfort and texture. When the skin is attacked (for example by excessive cleansing), sebum production is naturally stimulated to compensate.