This was the runner up in the quest to be defrizzed. (The best was Tigi BedHead Shine Junkie). It does shine your hair like patent leather, which is pretty cool. It smells decent, and is reasonably priced. It barely defrizzes my sorta-curly hair though. Once it dries, it goes back to normal flyaway status (but much shinier!) almost instantly. But wow, that shine is pretty incredible and it doesn't have any weight at all- to a fault, in fact, since it doesn't defriz.