Blackheads
Blackheads — a type of open comedone that forms when a pore becomes clogged with excess oil and dead skin cells. The trapped material stays open to the air and oxidizes, giving the surface a characteristic dark or black appearance rather than a color caused by dirt.
Key points
- Blackheads are a non-inflammatory form of acne and appear most often on the nose, chin, and forehead.
- The dark color comes from oxidation of melanin and sebum at the pore's surface, not from trapped dirt.
- Salicylic acid, a beta hydroxy acid, is oil-soluble and helps dissolve the debris that clogs pores.
- Retinoids support cell turnover and can reduce the formation of new comedones over time.
Frequently asked
Are blackheads caused by dirty skin?
No, blackheads are not caused by dirt; the dark color results from oxidized oil and skin cells in an open pore, so over-scrubbing will not clear them.
Which ingredients help with blackheads?
Salicylic acid and retinoids are commonly used because they help clear pore-clogging debris and support healthy skin cell turnover.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
