... it can treat and improve the problems that caused by the oxygen shortage, such as dark and light skin, wrinkles, ... :Digestive system----coprostasis, the disorder of the gastrointestinal unction;E:Metabolism and incretion----diabetes, meno-syndrome, menstrual disorder, cramp ... metabolism, improve skins dull, wrinkles, slack, melanin and etc.Oxygen sprayer head - cure all kinds of itch, sensitive skin, ...