I'm using bio oil, cocoa butter and mama bee belly butter..obsessive much? lol
I've had good results with scars on my arms, they've faded quite a lot that's why i chose to use bio oil. Also after i told my mother about my scars she tried it for a stretch mark she had after having my sister and she said it stopped it itching when the weather changes and its faded quite a lot.
You just have to keep using it and i think i'm going to use it for a while after i give birth too.