What is the effect of steam on the skin during a facial?

Steam has a beneficial effect on the skin during a facial by opening up the pores. When steam is applied, it creates a warm environment that causes the skin to expand, leading to dilation of the pores. This process allows for better circulation and can facilitate the removal of dirt, oil, and impurities that are often trapped within the pores. The increased blood flow also promotes a healthy glow and can enhance the effectiveness of subsequent treatments, such as cleansing or applying masks, by allowing the active ingredients to penetrate more deeply into the skin.

While the other options suggest negative effects, steam is primarily used in facials for its positive properties, making the choice of steam opening pores accurate and relevant to skin care practices.