The strip works by adhesion, not by dissolving oil deeper in the skin. You dampen your nose, apply the strip, and let it dry. As it dries, it grips the top of the pore contents – oxidized sebum, dirt and loose plugs. Peeling it off then mechanically lifts some of that buildup. That is why blackheads can look less noticeable immediately after use.
It helps to be realistic about the limits. The strip only reaches material close to the pore opening. It does not pull out sebum deeper in the pore, shrink pores, or stop your skin from producing oil. Visible blackheads often reform within days because sebum keeps being produced and the surrounding skin cells keep shedding. In humid weather or when the T-zone gets shiny during the day, buildup can be more visible, so the strip can be a useful occasional step.
Because the formula contains activated charcoal, allantoin and witch hazel extract, it is aimed at oily or combination skin and congested-looking T-zones. Allantoin is included to help calm the skin after removal, and witch hazel adds an astringent effect that can make the skin look smoother and pores appear less visible for a while. These effects are temporary, not structural changes.
If your question is whether one strip will leave the nose completely blackhead-free, the honest answer is no. It can give a quick visible refresh, which is why some people choose it before makeup or after a long week. To keep blackheads from becoming obvious, you usually need a gentler daily routine that helps reduce buildup over time rather than occasional peel-off strips alone.