Possibly a dumb question. How do you know you’ve panned a concealer packaged like this?

So, the tube is technically see through, but given it’s a thick concealer, you really can’t see into it. I’ve noticed with my last few applications I’m having to dip back into the container more, and it’s feeling like the product is drier. So maybe I’m getting closer?

I don’t want to throw it out prematurely, but I also don’t want to drive myself crazy trying to use up something that’s basically empty.