I used a John Frieda shampoo, the one for redheads, and it worked WONDERS on my hair.
Haven't had it for a few years though, so me sad.
I don't know where they sell it.
Right now I'm using Suave Sleek Shampoo and Conditioner; it's supposed to hydrate and anti-frizz hair. I hope it works. I took a shower a bit ago, and my hair's reeeaaally soft right now.