... length: 405nm-420nmFor ion treatment, there are total 3 modes: Cleansing, Nourish and Lifting3 intensity level for selection: L, M, ... skin is transmitted with ongoing positive (+) ions, negative (-) charged cleansing gel would dissolve oil, dirt, and impurities and would facilitate their ... Head.2.Remove makeup and apply a water based cleansing gel.3.Turn on device by pressing POWER Button for ...