"Luce 4T LED Facial Therapy Wand FEATURES Made of aluminum setoy, the LUCE 4T wears four types of therapy: Microcurrent Therapy: Uses low-level electrical currents to stimulate the muscles under the skin. This currency is responsible in relation to the creation of eretiredin and collagen which keeps skin supple and https://www.amazon.com/Luce-Skin-Care-Facial-Brush/dp/B085NLPXHZ