Swiss Clinic Skin RollerMicroneedling imitates skin trauma, which encourages the production of collagen and elastin and simulates new and healthy skin cells. Swiss Clinic Skin Roller creates micro channels, which allows for up to 300% increased serum absorption on face and body. Benefits of Swiss Clinic Skin Roller: Swiss Clinic Skin Roller comes with 1 x 0. 5mm head Replacement heads are available to purchase separately Encourages the production of collagen & elastin