Expression wrinkle Botox or filler~~ 3-8

Quite a bit due to habitual factors on the forehead and between the eyebrows

There are deep wrinkles.

Across the middle of the forehead, horizontally,

It is vertical between the eyebrows.

This has been happening for a long time whenever I go outdoors and see sunlight.

I developed a habit of squinting my eyes, so that...

It has become like this because it has been ongoing and repeated for a long time.

I heard briefly at the dermatology clinic before that it's better than Botox.

You need to get a filler~~ That's what I thought.

Maybe it's because of the difference in degree, right?

In that case, fillers are definitely better than Botox.

Is it more effective?

What are the side effects, duration of effects, and precautions to be aware of?

Actually, I have never even had Botox once.

I have no knowledge about it at all, so I'm a complete novice^^