salon straight?

I've found in reading up on flat irons that none is foolproof. Some people get absolutely fantastic results with them, some get average and some have perfectly horrible experiences. Use your best judgment, but personally I would look for one that had multiple good reviews. Just one wouldn't cut it for me.

Any place you buy from, make sure that you can return the item within 30 days if it doesn't work out for you.

You might go to any salon that specializes in straightening hair with thermal tools and seeing what they use. Good luck!