[image deleted]I see "ptex" i am thinking optex. Maybe a Eye wash hopefully made from sulphuric acid so she doesn't need to see the world that everyone has ruined. No seriously, not sure but the picture may help narrowing down product.
Been looking , someone take over from here. But i think it's a Hand Sanitizer as she is rather lazy a girl and on a train and how dare I dare I stop her from eating.
Thanks for all of the helpful comments. After a long search (shut up),I never did figure out what it is. Maybe eye wash, rubbing alcohol, maybe some kind of funky euro-hand sanitizer. Maybe the little darling got a splinter.