How long does it take for Mederma to show improvement on scars?

I have scars from scratching mosquito bite and what not and i was just wondering how long it takes for mederma to begin to show visible effects on these types of scars. The are brownish/purples scars that seem to be on the surface, just like darkened skin.|||With any skin lightening, scar removing, or anti-aging product, you need to use it regularly for 28 days to see the first signs of results. You won%26#039;t get the absolute best results unless you use the product regularly for at least three months.|||I used it for a month and really saw no difference...I think it depends on how deep the scar%26#039;s are... Good Luck :)