New Jersey State Board Esthetics Practice Exam

What effect does direct high frequency have on oily congested skin?

1. Hydrates the skin

2. Kills bacteria and eliminates excess sebum

3. Reduces pore size

4. Increases blood circulation

The correct answer is: Kills bacteria and eliminates excess sebum

Direct high frequency is a treatment method commonly used in esthetics that utilizes a high-frequency electrical current. This technique is particularly effective for oily and congested skin, primarily due to its ability to kill bacteria and eliminate excess sebum. The high-frequency current produces an effect that generates heat and creates ozone. This ozone has antimicrobial properties, meaning it can effectively destroy acne-causing bacteria on the skin's surface and within the pores. Additionally, the heat generated helps to break down excess oil, which can contribute to the clogging of pores and the formation of acne. By reducing the level of bacteria and excess sebum, direct high frequency helps to clear the skin, making it an excellent choice for clients struggling with oily or acne-prone skin. In contrast, while hydrating the skin, reducing pore size, and increasing blood circulation are beneficial effects of various treatments, they are not the primary purposes or most notable effects of direct high frequency on oily congested skin. This treatment specifically targets the pathogenic bacteria and excess oil, thus aligning closely with the needs of that particular skin type.