As a teacher I have gotten marker on just about anything it was possible to get marker on and never have been able to get marker out of leather. You could try a shoe maker to see if he has something to remove it or go the store where you bought the couch and see if there is something that will remove it.
get a cloth and soak it with gasoline
Use a dye or a marker. Heh.
Put some Dawn on it.
I have used Axe cologne spray and it has worked really well.
Try Isopropyl (rubbing) alcohol. Not just for hair... I don't know if this works on leather or not, but I've used hairspray to remove permanent black marker from a crushed velvet sofa. (I wonder if it's the alcohol in it?)
Permanent marker are made of colorant,carrier and resin.
the permanent marker was invented in 1956 in 1953 or 1890.
Well, one theory is that the chemicals contained in the whiteboard marker somehow reacts to the permanent marker, making it rub off, but it is not an excellent way to clean off permanent marker.
The permanent marker was invented in 1952 by Sidney Rosenthal.
No, all permanent marker's on the market today are none toxic.
sharpie is the best type of permanent marker.
Leather couches are low maintenance and resist spills and stains easier than a fabric couch. Be careful with ink pens and sharp edges that can scratch or cut the couch. Invest in a leather repair kit if purchasing a leather couch.