Shiny and frizz-free top the list of adjectives we want to be able to accurately use when describing our hair. But typical in-salon straightening treatments that promise us the hair of our dreams are fueled by formaldehyde and other nasty chemicals. Which is why Cezanne's new Perfect Finish Keratin Smoothing Treatment is different -- it uses a formaldehyde-free blend of keratin, sericin (the protein silkworms create when they're making silk) and glycolic acid to straighten the hair from inside the shaft, instead of just coating it. The treatment zaps unwanted frizzies and makes hair shiny without turning it too straight or, worse, flat. And since your hair is easier to manage, you won't have to depend so much time using damaging styling tools.