dd had surgery in may that left a scar on upper arm. i asked the orthopedic surgeon. he said it's useless. dd wanted to try it but i have seen no improvement. we will wait until she is older to see what it looks like (with kids it can change so much-had a friend who had open heart surgery at age 7, by the time she turned 18 what had been a scar from collar bone to navel was only about 2 inches long). just make sure to apply sunscreen to the area.