I used silicone strips for a while - I got some free of charge from the hospital in a check-up - but I couldn't buy more of them because they were so damn expensive. The size I needed was over 100€.

But I noticed my scars got softer and more even when I used them.
I've also tried Bio-Oil. Used it for several weeks and didn't see any difference so I stopped. It was annoying anyway so win-win?
Now I'm giving emu oil a try. My fiancée ordered it and apparently it's some miracle product of skin care that you can use almost for anything.
Oh well, at least it's 100% natural so it can't be too bad.

Unless you're allergic to emus, perhaps?