Not to be rude but...that's exactly what Mederma is for. On the tube that I have right here it says "Mederma...Skincare for Scars" It also says "helps scars resulting from surgery, injurty, burns, acne and stretch marks" So I don't know where you got that it's not for scars. Hope this helps you understand the commercial.
I gave Mederma a try for a few months and it did nothing for my acne scars. It worked well for a raised scar from a cut on my arm, but nothing for any type of scar on my face (ice pick, red, brown...)
Maybe it has worked for others, but if I saw that commercial, I would say that's false advertising as well.