After having 3 babies I am fortunate not to have any on my belly. I have some small ones on my boobs (because I went from being a size A to a size C+) but they have gone white and you can hardly see them. I agree that it's genetic... don't waste money on creams... they don't get in deep enough and even if they did i doubt if it would help. I'm pretty sure all stretch marks turn white... (?)