Black marker pen on school jumpers

[Lostinthewood2]

Can anyone help me get it out? I’ve tried Vanish spray on which unfortunately hasn’t removed it!

Hand sanitiser. Pour on, gentle scrub then wait. Might take a few goes but works 9 times out if 10.

Edited to say this is for whiteboard pen

Thank you! I’d never have thought of that - I’ll try it!