Gangnam Spa LLC - Blackheads are a type of acne that plugs the pores, while sebaceous filaments are a normal condition in which the pores contain some dead skin cells and oil.
How to Get Rid of Sebaceous Filaments: 7 Effective Methods
How To Get Rid Of Sebaceous Filaments | esmi Skin Minerals
Sebaceous Filaments: About, Vs. Blackheads, Why to Leave Alone