hydroxyl-hydroxide refers to theconversion of purified water into hydroxide-ion water, which produces h2 fine molecules on the surfaceofthe skin and rapidly penetratesthe water moleculesinto the skin,to achieve the efficacy of tender and white.through the formation of a vacuum circuit, the tiny bubbles and nutrient solution are fully combined,through a special design of spiral suction directly acting on the skin surface,the instrument produces thousands of bubbles, small bubbles with the skin contact vibration, the skin takes away the excess cuticle, so that the skin to return to normal angle layer thickness, with the original solution, to improve the skin, clean and whitening, tonic,exfoliate, remove blackheads oily skin and other multi-layer effects..syi