You should use nose strips after cleansing your skin.
Nose strips are most effective when applied to clean skin, specifically after you've cleansed your face with your usual facial cleanser. Cleansing removes surface dirt and oils, allowing the pore strips to adhere better and target the deeper debris, such as stubborn blackheads, that a simple surface wash might miss. This ensures the strip can effectively grab onto and remove the impurities within your pores.
Essentially, cleansing prepares the skin to maximize the nose strip's effectiveness.
