The electrodes of the high frequency machine are usually made of:

The electrodes of the high-frequency machine are typically made of glass. This material is chosen because glass allows for the effective transmission of high-frequency currents while also providing a smooth surface that is easy to clean and maintain. Glass electrodes can be manufactured in various shapes that optimize treatment effects, such as sparking or indirect high-frequency applications, catering to different skin types and conditions.

Glass is also non-reactive, which is crucial for maintaining the integrity of the treatments and ensuring that the electrodes do not interact negatively with the skin or the products being used. This choice of material aligns with the principles of safety and efficacy in esthetic treatments, as it minimizes risks associated with electrical conductivity and skin reactions. Additionally, glass electrodes can often be sterilized efficiently, which is vital in maintaining hygienic practices in any esthetic procedure.

The other materials listed, while valuable in certain contexts, do not offer the same advantages for high-frequency applications that glass provides, leading to its standard use in the industry.