.... Please be careful with pressure on the face. The needles are very long - but effective in my opinion. With repeated use, this can certainly help against wrinkles. Habs tried once and will use the Derma Roller on. The needles do not hurt much - for me it's unbearable. Sure, there are from time to time a few easy bleeding points but that is the meaning behind it; Injuries cause ... The workmanship is of high quality.