http://www.bio-oil.info/en/home
bio oil is good, but you will never get rid of stretchies because that is where the elastic component of the skin has broken down.
they will fade to small silvery lines eventually.
often it is the act of massage that helps, but the best is a mixture of cocoa butter, vitamin e cream and aloe vera.
get a cheapo big tub of vitamin e, then buy a decent cocoa butter and aloe vera and mix them about 3 parts vit e cream to one part of each of the other two and massage it in using circular movements - try to do it 2-3 times a day.
you don't need to use loads of the cream, you're massaging it in - not bathing in it