Sebaceous filaments are tiny, cylinder-like tubes that are most often observed on the nose and adjacent areas of the face. They are often mistaken for blackheads, but they are actually a mix of sebum and dead skin cells. While they are a natural part of the skin's follicle, some people may wish to reduce their appearance. When it comes to cleansing products, it's important to use non-comedogenic (non-pore-clogging) oils such as mineral oil or sunflower oil, as they can help to dissolve and remove the sebum in the filaments. Positive results can include a reduction in the appearance of sebaceous filaments, while negative outcomes may result from using harsh or pore-clogging ingredients. It's important to look for products with gentle exfoliants like salicylic acid and avoid ingredients like coconut oil, which can be comedogenic for some people. For a more detailed analysis of specific ingredients or materials in cleansing products, it's best to consult with a dermatologist or a skincare expert.