Hi,
I just bought MEDERMA today I am not sure of how it works but it sure costs enough to work. A small lipgloss bottle was $17 dollars. I also bought coca butter it always works.
I have been using Vitamin E oil. You can find it at Wal-Mart for about 3 bucks. I have been putting it on with a q-tip. My friend, that used it on her scars, looks awesome.