My forehead is so flat that I want to add some volume, but I'm really struggling to decide.

Where is a good place for forehead fillers that really creates a natural line?

I actually narrowed down a list of places near Gangnam known for forehead fillers, haha.

But I don't want anything that looks too artificial, so it's not easy to make a decision, haha.

I'm worried that it might become bumpy after getting the fillers; has anyone had this procedure done?

I want to go to a place where the director has a great sense of design, but it's hard to find information.

Because of my personality, I tend to scrutinize everything meticulously before going, so I think I'm being extra cautious.

I'm debating where to go so I won't regret it. What do you all consider most important when deciding on a procedure?