Blackheads look like dirt to be scrubbed off. That is the main mistake: the dark colour is oxidised sebum, not grime. Scrubs and strips do not "wash it away" but do irritate the skin. Let us work out what does help, and how comedones differ from sebaceous filaments.
A blackhead is an open comedone: a pore congested with sebum and cells, whose top has oxidised and darkened. It is not dirt and cannot be removed with a scrub. What works is gentle exfoliation (BHA) and retinoids (adapalene). And sebaceous filaments are normal — they cannot be removed at all.
01It is not dirt
When a pore becomes congested with sebum and dead cells and stays open, its contents come into contact with the air and darken — the result is a blackhead (an open comedone). If the pore closes — that is a whitehead (a closed comedone). The dark "dots" are not dirt, so rubbing is useless: rubbing only aggravates acne.
02Comedones or sebaceous filaments
They are constantly confused, especially on the nose. They are different things, and the approach to them differs.
How to tell them apart
Comedones
- What it is
- A pore congested with sebum and cells
- Appearance
- A dark or white dot, raised
- Can it be removed
- Yes, with exfoliation and retinoids
- Where
- The face, more often the T-zone
Sebaceous filaments
- What it is
- The natural outflow of sebum from a pore
- Appearance
- Grey-yellow dots, even, in rows
- Can it be removed
- No — they are normal, they return
- Where
- The nose, the sides of the nose
A simple guideIf you squeezed them out — and a day or two later the "dots" on the nose returned in the same even rows, these are sebaceous filaments, not comedones. They need not (and cannot) be removed entirely; they can only be gently kept in check with care.
03What works
- Salicylic acid (BHA) — oil-soluble, cleans the pore from within.
- A retinoid (over-the-counter adapalene) — normalises renewal and prevents new comedones.
- Gentle cleansing twice a day, without scrubs or brushes.
- Non-comedogenic products, so as not to clog the pores again.
04What not to do
- Scrubbing "clean". The dark colour is not dirt; rubbing aggravates acne.
- Squeezing with the nails. Injury, inflammation, a risk of scars.
- Nose strips as a method. They remove the top but leave the cause; sebaceous filaments return.
- Alcohol and over-drying. The skin responds with more sebum.
05Common questions
Why do blackheads return after a clean-out?
If these are sebaceous filaments — that is normal: sebum is produced constantly, and they appear again. Comedones, though, do genuinely reduce with regular care using BHA and a retinoid.
Can I squeeze them out myself?
Better not. Squeezing injures the skin and can leave dark marks and scars. A professional clean-out (extraction) is done by a dermatologist or an aesthetician.
Drawing on dermatological sources:
This material is educational and does not replace a consultation with a dermatologist.