4 in 1 microdermabrasion cold & hot hammer machine 1,4 in 1 machine 2,CE approval 3,easy to operate,high quality 4 in 1 diamond microdermabrasion colour photon cold & ... the top skin layer, then vacuuming out the particles along with any dirt and dead skin backup. This procedure removes ... essence into the skin by compound light. The photon reacts with the skin cells, stimulate the cell and improve the ...