What’s the difference between blackheads and SFs?Updated a year ago
You can think of sebaceous filaments and blackheads as existing on the same spectrum. With both, the pore gets filled with a collection of dead skin and sebum.
The difference is that with SFs, the plug forms around the hair that grows out of each pore and doesn’t block the pore from transmitting sebum to the surface of the skin. With a blackhead, the pore is clogged from “wall” to “wall”, so the plug becomes more noticeable, may stretch out the pore, and could potentially become a pimple later on.