I don't know if you remember when I got this highlighting pen but it's been a while.
It's a nice highlighting pen since you can directly place it on the places you want to. I usually apply it on the highest point of my cheeks, down my nose and on my cupid's bow.
The only part that I don't like is that you have to twist it so you can apply it which is kind of hard at some times since you'll never know how much product will come out of it.
But if you're looking for a liquid highlighter it might be worth a look :)