If no water in the skin of the people you can survive is not included, we need to enough moisture to help maintain the normal function. We are always happy and need to know the moisture of your skin renewal in order to know the health of your skin. Purpose: This product is the latest in baioinpi-dansu analysis (BIA) technology is used in making automatically detect the factors affect the condition of the skin such as moisture, oil, softness incurable, results on the LCD screen to display and understanding. Usually used to affect the effect, food, health condition, lifestyle habits, and the external environment, the condition of your skin. BIA what is? BIAs bioelectric impedance analysis stands for, and the Bio – Impedance Analysis measure your theory (impedance are non included is can also be used as a resistance to one (1) Effective conductor and zero fat mass (bodily fluids and electrolytes) and fat (fat is the moisture away from your body not included) We give your body tissue.