I have a scar which is 3 years old which I got from a motorbike accident and broken ribs. The scar is 30cm long and 2 cm wide. Angela recently performed three treatments on the scar with the dolphin MPS microcurrent units and the scar has shrunk to 1 cm wide, it has faded so is not as noticeable and the sensitivity has gone. I am really happy and would recommend this to anyone with an old scar or new.