Which of the following is a common use of a vacuum suction machine in facials?

A vacuum suction machine is commonly used in facials to improve circulation and remove impurities. This device works by creating a negative pressure that helps to stimulate blood flow in the skin, enhancing overall circulation. Improved circulation can lead to better oxygenation of the skin, helping to rejuvenate and revitalize it.

Additionally, the suction action effectively extracts debris, excess oil, and impurities from the pores, which can help in reducing the occurrence of breakouts and promoting a clearer complexion. By removing these impurities, the vacuum suction machine prepares the skin for further treatments, allowing for better absorption of active ingredients from products applied afterward.

While the other options reference various benefits associated with skin treatments, they do not specifically align with the primary function of a vacuum suction machine. Hydration and product penetration typically involve different methods or technologies, and while dead skin cell removal can be a secondary benefit from the suction, it is not the machine's primary purpose. The focus on improving circulation and removing impurities highlights the essential role the vacuum suction machine plays in achieving clearer and healthier skin during facial treatments.