Syllabus: History of High Frequency What is a High Frequency Current? Benefits of High Frequency High Frequency Device & Glass Electrodes Direct Method In-Direct Method Restrictions of Treatment, When to Apply Treatment & HomecareTreat Acne, hormonal outbreaks and regulate sebum production and hydrate the skin. Perfect for home users, looking to control their skin as well as salon professionals looking to add value to their facial services. A gentle and safe facial treatment for people of all ages and skin types.