What is the appropriate amount of forehead filler to achieve a natural look? (I am also curious about the duration and side effects.)

Hello! I have always been self-conscious about my flat and uneven forehead, so I am seriously considering forehead fillers.

I want the volume to fill in naturally, but I'm worried because people around me say that if it's done incorrectly, it could become too excessive or uneven.

I have a few questions, so I am leaving this inquiry.

• Suitable dosage: How many cc of domestic or imported filler is typically used for a forehead shape like mine? I am curious about the standard for achieving a beautiful look without looking excessive.

• Maintenance Period and Management: Approximately how long does it last, and do I need periodic touch-ups to maintain the shape later?

• Side effects and daily life: I have heard that the forehead has many nerves and blood vessels; is there a high probability of side effects such as lumps, bruising, or swelling? I would also like to know when I can resume my daily activities after the procedure.

I would appreciate advice from those who have experience with the procedure or from the director!