Review (4/5): Not a miracle worker, but it does help
Is it a miracle worker? No.
Will it improve your hair? Yes.
If you've seen the videos, it won't be like that. However, it does improve, and possibly even thicken, your hair. I have very thin, frizzy hair, & it has tamed some of the frizz. I use it every time I wash my hair.
So is it worth the money? I'd say so, yea. Will I keep looking for something better? Absolutely.