Which is more effective for neck wrinkles, Botox or fillers?

Botox prevents excessive muscle contraction, effectively alleviating expression lines and reducing muscle size. For this reason, it is widely used to treat frown lines, forehead wrinkles, square jaws, and hyperhidrosis. On the other hand, fillers improve volume by injecting hyaluronic acid to fill in sunken areas. I was told that fillers are more suitable for areas that appear sunken, such as nasolabial folds.

then neck wrinkles Which procedure would be more suitable for this? I’ve heard that Botox can be effective for shallow wrinkles, while fillers are helpful for deep wrinkles or those accompanied by hollowness. I am curious to know which method would actually be the most effective for improving neck wrinkles.

For those who have experience with neck wrinkle treatments or experts Which is more suitable between Botox and fillers? It would be a great help if you could let me know.