I have found a method that helps them fade away, so that you can barely see them! How good does that sound?!
All I use is: Palmers Stretch Mark Lotion, (which is supposed to be used by pregnant woman, but works a treat!) and Lush Therapy Massage Bar.
First I apply the massage bar, just by rubbing it on my skin. The heat from your body melts the bar. And then I use the stretch mark lotion. It is quite thin, but rubs in nicely.
The Palmers Lotion retails for around £4 or £5? And I think the massage bar is around £5 or £6.
If you have stretch marks, I hope this works for you! Its really affordable and effective.