Yassan is branded and brand name. Yavan cheol is the brand name of taiwan in guangzhou, china. Its products are mainly cosmetics. Yaspan cheol is a professor of chinese skin diagnostics, and yashu cheol is the only type of biofunctional maintenance product in china that is based solely on the needs of chinese skin physiological characteristics and problems. Each item is tested at the national level with a test report. It is only 0. 02 micrometres in diameter and is so small that it can penetrate every layer of the skin that it releases energy on a layer-by-story basis to care for each layer of cells. Each person's skin is different from the products used, and human metabolisms are relatively strong and water is lost faster, so it's the first thing to refill it. There are a number of products that respond to different skin problems and different needs for skin protection, such as purified bottles suitable for use by people with mosaic skin, large fur holes, dark scabies and puffs; ct...