What is used to open the pores?

The facial steamer is the correct choice for opening up the pores. The steam from a facial steamer creates a warm, moist environment that helps to soften the skin, increase blood circulation, and promote the dilation of pores. This process can enhance the effectiveness of subsequent skin treatments, such as cleansing or extraction, as it allows for easier removal of impurities and debris trapped within the follicles.

Toners, though beneficial for balancing the skin's pH and tightening pores, do not physically open them. Cleansers are designed to wash away dirt and makeup but typically do not have a mechanism to open pores as steaming does. Moisturizers are used to hydrate and protect the skin but also do not have any impact on opening the pores. Thus, the facial steamer stands out as the primary tool for this specific purpose.