Flat irons, relaxers and the controversial Brazilian blowout. Dr. Oz reveals the shocking truth behind these treatments. Plus, learn how you can stay safe without sacrificing the look.

How safe are your cosmetics? Click here to take the quiz.

Click here to watch Part 1.

You've heard of red wine and white wine but have you ever heard of blue wine? This blue version of wine is given a taste test to see how it compares to the classics.