During which treatment is ozone typically formed?

Ozone is typically formed during high frequency massage treatments. When high frequency electrical currents are applied to the skin, they can interact with oxygen in the environment, leading to the formation of ozone. This occurs because the electrical energy causes the oxygen molecules to break apart and recombine in a way that forms ozone (O3), which possesses certain beneficial properties for the skin. High frequency treatments are often used to enhance circulation, promote healing, and have antibacterial effects, making them popular in various facial and skin care regimes.

The other treatments listed do not involve the conditions necessary for ozone production. Oxygen therapy primarily involves the direct use of oxygen without the generation of ozone. Ultrasound therapy utilizes sound waves for therapeutic benefits, and exfoliation treatments focus on the physical or chemical removal of dead skin cells without involving electrical currents or the formation of ozone.