Try the pink stuff (cleaning agent) from the betterware catalogue £3.99
It works for leathers without being abrasive also it took old pen marks out of my sofa with one wipe! Good for taking marks off wood furniture too. Not good for the faux leather though, gl ... View related article.
My 18 month old has just used a blue ball point pen to draw all over my cream leather sofa! "again" my first attempts at moving them was with suggested methods which just faded the leather and pen marks. This morning I've noticed he'd done it again this time big round marks!
In a panic I just picked up my new buy from the betterware called the "pink stuff"(cleaning product) put a bit on a damp cloth,with the first wipe it was gone,i gave it a go on the previous marks and too they have disappeared, no scrubbing was needed and no damage to the leather-give it a go! literally one wipe and it was gone.
ps: I did however try it on my chairs which are faux leather. It only faded the pen marks so best works on real leather. ... View related article.