Hi there. I'm after any first hand advice about if you or anyone you know has thick, wiry hair and have had success with keratin straightening treatments? I have awful hair (and lots of it) and can't even wear it in a ponytail without straightening it!!! It's awful so mainly is rolled up in a bun. I like to have it straightened but barely find the time so wanted to see if this might be an option. Any feedback?