How to use derma
rollers: -Disinfect the needles with *5% alcohol before
every time use -Consult your beautician or doctor if you are
using long needle size roller (longer than 0.5mm) -Don�t share with other users, keep the needles
always clean and dry -Follow 3steps of needling to enhance forming
channels
� Horizontally->Vertically->Diagonal
� Each step has to be repeated 3 times at once
