cocoa butter lotion works wonders, even the ointments for removing stretch marks contain cocoa butter in the ingredients.
I lost mine over time with the proper ointment, you can go to any pharmacy or store where they sell lotion and buy it. I can't remember the brands name but it works wonders over time, I can assure you.
Due to a rapid growth spurt I had quite severe stretch marks on my lower back. Over time they just faded for me, they're still there and visible if the light catches them right, but that's the bad habit of scars, they're there for good.