Witch Hazel naturally tightens the skin, and when applied, cleanses the surrounding pores and removes dirt and other impurities from the pores. This is why it is so popularly used as a cleansing agent for the skin, especially by those who have oily skin. It not only makes your skin look cleaner and healthier but it also nourishes and moisturizes the area. The best way to apply Witch Hazel to remove impurities from pores is to simply soak a cotton ball in Witch Hazel and apply liberally all over your skin, then allow it to dry naturally on the skin.