Weighing just over 1 pound, the BaByliss Pro Nano Titanium Straightening Iron is the lightest hair straightener on our list of the best flat irons! This lightweight design makes it a great choice for users that are constantly on the go, and even when traveling. In fact, this model might make a wonderful “second straightener” for someone that wants to keep their locks looking fine on the road without toting around their heavier at-home hair straightener!
We usually roll our eyes at oil-infused heat tools — but you can actually watch this oil being sucked right out of the refillable cartridge in the handle. When you press the iron closed over your strands, the oil vapor seeps through tiny holes to condition and straighten your hair. And don't worry fine-haired friends: It made our tester's hair silkier, but not like she'd dipped it in an oil vat.