by ALI GOUDARZI
Tesla high-frequency current, also known as violet ray, is a thermal or heat-producing current with a high rate of oscillation or vibration that is commonly used in scalp and facial treatments. This current is produced by a violet ray machine, which uses a Tesla coil...
by ALI GOUDARZI
High-energy visible (HEV) light, often referred to as blue light, is a part of the visible light spectrum that has shorter wavelengths and higher energy compared to other colors. As the use of electronic devices continues to increase, concerns regarding the potential...
