That's actually what it does with Hair One. It does have a cone in it, which is why I wash it with a low poo every now and again. But it's made my hair a lot less prone to frizz.
I was reading about that Pillow Soft Curls. I know I've seen it at Target. I'm not sure I want to add another cone, which it said that it also had.
I don't really have an objection to being curly in itself, I'm just tired of trying to make the straight pieces match the curlier ones. I think it might be easier to just let the curlier ones soften a little, and blend into the straighter ones. My hair is shoulder-length, so not that long, and I think if I let it grow a bit, it'd develop into big ringlets.