i have very oily, thick, curly hair and a lot of volume too.  I also live in one of the most humid states, so my hair was always just a mess, where heat and a lot of humidity don't exactly help my hair remain frizz free. I was very skeptical when I first bought this product because I had tried many hair straighteners and all had given me poor results. Thank goodness that I was finally proven wrong! This product definitely does what it says it will do and is very affordable in comparison to other products on the market. I flatten my hair after I blow dry it and I have finally been able to tame...