They say it’s not guaranteed; the principle is that it brings out the aegyo-sal (under-eye bags) that were originally present but buried by under-eye fat. ㅠ When I consulted, they told me I don't have even a tiny bit of aegyo-sal... ㅠㅠ I was really hoping that getting under-eye fillers would create aegyo-sal... ㅠㅠ Going to a place that's good at under-eye fillers doesn't mean aegyo-sal where there wasn't any will suddenly appear, right?