Hairspray works well on ink but maybe you could test a small spot first if you are worried.

Ugh if you find out lemme me know!!

My go would be W40 or Eucalyptus oil as well.

I would try and google an answer.

A good question as l noticed l have pen on my bag,will take note of the answers!

try wiping gently with eucalyptus oil. I have also heard that WD40 removes marks from pen on leather as well. Years ago I had cream leather lounge I used cream for use on hourses saddlesand remember did fantastic job

Deoderant.

I would try a cloth and eucalyptus spray

Was also going to use WD40 it works really well.

I used my bacterial wipes (nappy wipes should work too) and my bag looks nearly brand new – got out pen stains (pale pink bag) with no problem

I used baby wipes on my bag and it cleaned it really well

not sure. I too have lots of pen marks on my bag.. lol

there are some good comments here

Some good advice there below.

alcohol works on leather, and even gumtion

Oh no! Hope you found something to remove it!

Try baby wipes! They remove everything, and should be gentle enough for leather

I love the idea of using WD40 because my husband usually has some of that handy

Try Eucalyptus Oil on a cotton bud. Just dab a tiny bit on it and gently wipe along the pen mark….if you think it’s not good enough try Tea Tree Oil xx

I’m finding all these answers really great.