First off, some hair types frizz, especially in humid weather. Some people get much better results when using cones, and you might be one of them. Also, I use sulphate shampoos as needed without any issues. The amount I shampoo can vary from every week to as long as a couple of months between uses, but any time my hair acts oddly, I shampoo and then condition. My hair goes back to feeling soft and silky, and if it doesn't, I repeat the S & C the following wash. I have some hairs that are much thicker and more rough feeling than the others. They are also curlier. It isn't damage, they grow that way, because I can feel the rough texture all the way to the root. Yours might be the same. Finally, if you try banana, get banana baby food unless you want to have blobby, snotty bits of banana in your hair for days! Hope that helps!