Why RŌZ Is Your Favorite Hairstylist’s Favorite Haircare Brand

The cult classic is about to become a Sephora-haul staple.

roz hair in sephora
(Image credit: ROZ)

I’ll never forget the first time I sat in Mara Roszak’s chair. Within the first five minutes, I was getting a much-procrastinated haircut. In 15, we’d discussed all her A-List clients—Emma Stone, Mikey Madison, and Hailey Bieber. By the 20-minute mark, I was unabashedly confessing that I was a walking advertisement for her namesake haircare brand, RŌZ.

While I know I'm devote to RŌZ now, I can't recollect exactly when it took over my haircare routine: Its rise was just that swift. Following its 2021 launch, RŌZ near-instantly became an if you know, you know brand. My favorite hairstylists (hi Jacob Rozenberg and Ryan Richman) all started carrying it in their kits and every Cool Girl in existence copped to using it, too. RŌZ even amassed a trendy cohort of investors including Zoe Saldaña, Mila Kunis, and Lily Collins.

With so much support from beauty industry insiders, it’s no surprise Sephora is now snatching it up. RŌZ officially launches online and in stores, today, February 11. The expansion from direct-to-consumer retail to a mass retailer is the first step in making RŌZ a household name. “It’s a dream come true and is really going to bring so much awareness to RŌZ,” Roszak says. If it takes over Sephora the same way it did beauty insider circles, I suspect her line will be a long-lasting success.

roz hair products being combed through hair

The Reparative Hair Mask is formulated with vitamin E to prevent dryness and frizz, as well as rice extract to boost shine and minimize breakage.

(Image credit: ROZ)

roz hair products on a hand

The Willow Glen Pre-Wash Hair & Scalp Oil soothes irritation on the scalp—without damaging color-treated hair.

(Image credit: ROZ)

This line isn't all celebrity hype. It has results to back up its rave reviews. Using RŌZ religiously is like being invited to a Secret Hair Society, one where every member has fluffy, tousled texture. (Split ends? Heat damage? They're denied entry at the door.) The Shampoo and Conditioner are nourishing and hydrating without feeling heavy, The Milk Hair Serum is the do-it-all that somehow never existed before, and Santa Lucia Styling Oil—well, you just need to try it out for yourself to understand the appeal.

Roszak crafted the brand to foster equal excitement and discovery across every hair type and texture, not an easy feat in an industry that pushes hyper-specialized haircare products. “In the past we were told, 'You have this type of hair, this is the product for you.' But I never approached hair that way. When a product really performs, I need it to work on Zoe Saldaña’s hair and Emma Stone’s hair and Michelle Yeoh's and Natalie Portman’s,” Roszak tells me. “My own approach to hairdressing and styling is really bringing out what is naturally beautiful. I want my products to do that.”

Every item in her nine-product line has to “have a real reason to exist.” A “good” product doesn’t cut it—each launch is designed to be transformative in a way that makes effortless-looking hair genuinely effortless to achieve. Doing that requires rigorous testing (the brand new Evergreen Styling Cream was tested on Emma Stone’s pixie on the Golden Globes red carpet) and a commitment to lightweight formulas and botanical ingredients. “I always want to remind people that their hair is really beautiful,” says Roszak.

sarah michelle gellar at spiderman 2 premiere

Roszak's first celebrity styling gig was with Sarah Michelle Gellar for the Spider-Man 2 Los Angeles premiere. "She ended up hiring me to do her hair pretty consistently," says Roszak.

(Image credit: Getty Images)

emma stone at golden globes

"I've been fine tuning Evergreen for over two years," says Roszak, noting that it was the only product she used to style Emma Stone's hair at the Golden Globes. "It's beautiful, creamy, and lightweight; perfect to slick back your hair or tame flyaways."

(Image credit: Getty Images)

While there’s still much to come from the brand (my lips are sealed), Roszak already feels her mission is somewhat accomplished. “When my peers call me or reach out to my team and ask to get their kit restocked; when they tell me they’re obsessed with the product—that’s when I know I’ve created something legit,” she laughs. “These pros have access to anything and everything, so when they say they need more, what could be a better compliment?”

To answer a rhetorical question: a sold-out Sephora launch wouldn't be too shabby.

Shop RŌZ Haircare

Samantha Holender
Senior Beauty Editor

Samantha Holender is the Senior Beauty Editor at Marie Claire, where she reports on the best new launches, dives into the science behind skincare, and shares the breakdown on the latest and greatest trends in the beauty space. She's studied up on every ingredient you'll find on INCI list and is constantly in search of the world's glowiest makeup products. She's constantly tracking the biggest nail and hair trends to pop up in the beauty space, going backstage during fashion weeks, tracking celebrity looks, and constantly talking to celebrity hair stylists, nail artists, and makeup artists. Prior to joining the team, she worked as Us Weekly’s Beauty and Style Editor, where she stayed on the pulse of pop culture and broke down celebrity beauty routines, hair transformations, and red carpet looks. Her words have also appeared on Popsugar, Makeup.com, Skincare.com, Delish.com, and Philadelphia Wedding. Samantha also serves as a board member for the American Society of Magazine Editors (ASME). She first joined the organization in 2018, when she worked as an editorial intern at Food Network Magazine and Pioneer Woman Magazine. Samantha has a degree in Journalism and Mass Communications from The George Washington University’s School of Media and Public Affairs. While at GWU, she was a founding member of the school’s HerCampus chapter and served as its President for four years. When she’s not deep in the beauty closet or swatching eyeshadows, you can find her obsessing over Real Housewives and all things Bravo. Keep up with her on Instagram @samholender.