The side of my forehead is hollow, so I'm planning to get a consultation first. ㅁㅈㄹ is the most famous. Is that okay? And when you get a hairline consultation, what are the most common questions you ask?ㅠㅠ When I looked at cafes and blogs, density and after-sales service seemed to be the most important.. but I was at a loss to find out from the beginning.