The #WaveFormation Trend Is Demystifying Cool-Girl Hair, Once and for All

Eat your heart out, Olsens.

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Fall is officially upon us, which means you can use hot tools on your hair without your hard-earned style disappearing instantaneously amidst the balmy summer humidity. At long last! Ah, so now the question is: What tool to reach for?

As far as the flat-iron-versus-curling-iron debate goes, the latter has always been the more intimidating of the two. We suspect this has played no small part in why flat-iron waves have been wildly popular over the past few years. There's just more lazy-girl appeal there.

So what if we told you that you could acheive even cooler, fresher texture using an old-fashioned curling iron, but in a Curling Irons for Dummies kind of way? That's where L.A. hairstylist Anh Co Tran and his rookie-friendly "wave formation" technique come into play.

As Refinery 29 points out, his method marries beach waves and classic S-waves together for the most perfect, bend-y French Girl waves you've ever seen. And dually, makes the look super easy to achieve.

In the videos, Ahn uses a 1.5-inch iron and lightly clamps it down over each section, alternating the direction as he keeps moving down up to the ends. (If you want to mix things up, you can also throw in some loose barrel curls.) Once your waves are in tact, feel free to muss 'em with your fingers or dry texture spray.

But PSA: When using this technique, you have to be weary of the three Ts: temperature, time, and tension. Too much of one can lead to damage, so be cognizant of your hair type and don't overdo it. Now go on, get wavy.

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