It doesn't look like it, but it works! And indeed, there are videos on YouTube as mentioned in other comments that show you how to use it correctly! I've only tried the classic technique, I haven't really experimented much but it worked for me and I use it every time.

It's no coincidence that it's used by hairdressers. It glides beautifully through the hair and generally gives a premium feel.

For curls, at least in my hair, it didn't help much. I wouldn't buy it again, but it's not completely useless to me

Amazing brush for creating curls on wet hair, even without following a specific technique. Not recommended at all for detangling after washing.

It gives a very good shape to the curls, even to those with fine hair.
The tricky part is to find the different techniques that exist and get familiar with the ones that suit you.

In curly, unruly hair. After using this brush, you don't need any other incredible for straightening and amazing for controlling unruly curls

Like other users, I also used it for curl formation. Very good, it does what I hoped it would do (2c-3a curls, thick hair, tendency for intense frizz). Depending on how you work it, you can create different curls, you just need to have naturally curly hair. I don't give it 5 stars because something tells me it's not the original and I couldn't push it to remove the teeth (I'm afraid to push it hard and not be able to put them back).