using the principle of water replacement and low pressure the skin is deeply cleansed without making the pores enlarged and it can replenish a lot of moisture to the skin it is used to tighten the face. a specific current can induce the expression of a variety of proteins in the dermal tissue, which helps to accelerate the skin's multiple tissues. the skin microcirculation andessence absorption help to enhancethe tightening of the face. it can deeply clean the residual dirt in the deep skin, promote the absorption of skin care nutrient essence such as facial mask by cells, penetrate deep into the skin, and make the skin full of vitality..syi