My hair is just below my shoulder and I have bangs pushed to the side. When I blow dry my hair in the morning it looks great. But about an hour later it's flat and does this flip thing on the ends. I use a straightener every morning and it looks great when it's straight, but then the ends flip. What products can I use to help keep my hair straight? I'm also considering the Keratin hair straightening, but it's expensive, so I wanted to try some products first. Any suggestions?