Explaining Sex Hair, the Undone Hairstyle Trend Actually Worth It

Sex. It’s fun, and it's always better in the moment. But a new hairstyle trend makes the case for what comes after.

There’s something about the heat of it all that can make someone feel extra confident, unrestrained, and effortless. If you picture yourself at your sultriest, chances are, your hair plays a starring role—perfectly undone, tousled just so, like that cinematic moment when the movie star wakes up after a passionate night, tresses artfully disheveled and with volume in all the right places. That’s sex hair. Hollywood might make it seem like a post-romance miracle, but the truth is, this look takes far more intention than you’d think. Tutorials on TikTok to capture the look (often dubbed "seggs hair") prove this.

So, what exactly is sex hair, and why are we trying to achieve this look? No, you don’t actually have to have sex to achieve it. Iin fact, real sex probably won’t give you the desired effect). This look is all about tousled, voluminous waves or curls, and just the right amount of disheveled. It’s effortless—but in a way that still feels undeniably sexy. 

Hair trends come and go—one year, it's sleek ponytails are everywhere and the next, it's about chopping them off entirely. In recent years, almost every sector of beauty—hair, makeup, nails—has embraced some version of the "clean girl" aesthetic: think polished, sleek, frizz-free strands, minimalist manicures, and multi-step skincare routines that require both patience and precision. But now, there’s a shift happening—one that embraces the undone, the effortless, the slightly messy.

Keep scrolling to read about how to achieve the sex hair look and what products are most helpful to make it last.

Good Sex Hair Starts With the Right Base 

The secret to sex hair is about getting extra volume, which starts in the shower. Use a volumizing shampoo and conditioner to add body without weighing your strands down. If your hair tends to fall flat, skip heavy conditioners because too much moisture can work against you. Fan favorites for thickening shampoos are Kerastase's Bain Densité Shampoo and Amika's Volumizing Shampoo.

Add Texture With Mousse or Spray

Before drying post-shampoo hair, work a volumizing mousse or texturizing spray into it while damp. Mousse helps create lift at the roots, while a texturizing spray adds that slightly gritty feel that makes hair hold a style longer. Both can help achieve the post-NSFW hair look. If you have fine strands, opt for a lightweight formula to avoid buildup or causing breakage to the hair. Joico's Whip Whipped Foam is a good option for a mouse foam, as is Not Your Mother's Plump For Joy Lifter Spray. 

Blow-Dry Upside Down

Blow-drying your hair upside down is one of the easiest ways to boost volume. Use a round brush to lift the roots while directing airflow upward. For extra lift, hit your roots with a blast of cool air before flipping your hair back over. What's different about sex hair specifically is adding a little bump at the back of the head. Lift a section up at the back of the crown and blow-dry it extra to get that boost of volume.

Optional: Create Loose Waves

The key to sex hair is movement and an easygoing feeling, and waves can add to the overall voluminous look. If you don’t naturally have them but want to up the ante on your sex hair, use a large-barrel curling iron or flat iron to create loose, imperfect bends. Wrap sections of hair loosely around the barrel, alternating directions for a more natural, undone effect that perfectly captures the trending hairstyle.

Final Touch? Mess It Up

Here’s where the real magic happens for sex hair: finish the look by getting a little messy. Run your fingers through your hair to break up any waves or chunks of hair. Then, mist a texturizing spray or dry shampoo at the roots for extra lift. Scrunch your hair lightly to add some natural-looking messiness. Don't be afraid of a little frizz or a messy side-part. After all, you want to look like you just finished having the best sex of your life.