12 Cult-Favorite Hair Oils That Transformed My Dry, Frizzy Ends

Glossy, never greasy.

best hair oil
(Image credit: Launchmetrics)

Shopping for hair oil can feel a little tricky, especially since, like face oil, it carries a built-in contradiction. You don’t want your hair to look greasy or weighed down, so why put oil on it at all? For some clarity, here’s your quick hair oil 101: “Hair oils work by sealing in hydration, smoothing the hair cuticle, protecting against environmental aggressors, and even calming an irritated or dry scalp,” explains board-certified dermatologist Dr. Nicole Ruth, MD. “They can help reduce breakage, add shine, and protect against heat or styling damage.”

Dr. Ruth also stresses the importance of managing expectations. “Think of using hair oil the same way you think about applying body lotion; it doesn’t permanently change your skin, but it makes it feel hydrated, smooth, and comfortable while it’s on,” she explains. “Hair oil works the same way. It coats the strands, smooths the cuticle, adds shine, and can reduce frizz and flyaways. But you have to keep up with it. Regular use is what gives you those consistently polished, healthy-looking results.”

Of course, like all beauty products, finding the best hair oil depends on your specific hair type and goals, Luckily, I’ve found 12 options to suit most hair types and concerns, from curly and frizzy to dry hair and more, with expert insights from Dr. Ruth, Robert Finney, MD, Jeanine Downie, MD, and more. Keep scrolling for the best hair oils of 2025, compiled by me, a longtime beauty editor who’s tested hundreds of products over the years, alongside recommendations from other Marie Claire contributors and editors, plus beauty-obsessed Redditors and internet users alike.

The Best Hair Oils

Marisa Petrarca using Isima Delicia Reparative Hair Oil

Contributing beauty writer Marisa Petrarca uses Isima Delicia Reparative Hair Oil

(Image credit: Marisa Petrarca)

Marisa Petrarca using Fable & Mane Hair Growth Oil

Contributing beauty writer Marisa Petrarca uses Fable & Mane Hair Growth Oil

(Image credit: Marisa Petrarca)

Marisa Petrarca using Maria Nila True Soft Argan Oil

Contributing beauty writer Marisa Petrarca uses Maria Nila True Soft Argan Oil

(Image credit: Marisa Petrarca)

How Do I Choose the Best Hair Oil?

Know Your Hair Type: The “best” hair oil depends on your texture and goals—what works for fine, frizz-prone strands won’t be the same as what nourishes thick curls.

Match Your Styling Routine: If you heat-style often, choose an oil with built-in heat protection. Luckily, many of my picks already have it.

Zero In on Your Goals: If you're prioritizing repair, look for science-backed formulas with sophisticated proteins and bond builders, such as K18 or Olaplex.

How Do I Apply Hair Oil?

Unless your hair oil is specifically formulated for use on the scalp, Dr. Marcus advises that hair oils only be used on "dry hair from the ears down." Otherwise, she says, it "could cause hair to appear weighed down. Most hair oil products should be applied sparingly to avoid creating buildup in the hair, and some may wish to apply oil only to the ends of the hair if the goal is to hydrate dry ends while preserving plenty of body and volume."

However, it's important to note that hair oils come in different forms, and this impacts the product's frequency of use, the amount you should dole out each time, and whether you should wash the oil out.

"Some hair oils may be formulated into shampoos or conditioners, while others may be in the form of a hair styling product or hair mask," Dr. Garshick points out. "Depending on the product formulation, hair oils may be used anywhere from one to two times per week up to every day."

Furthermore, users may need to tailor their hair oil routines depending on their individual needs. "Typically the thicker the hair, the more oil may be needed per application," she says.

Why Trust Marie Claire

For more than 30 years, Marie Claire has been an internationally recognized destination for news, fashion and beauty trends, investigative packages, and more. When it comes to the products Marie Claire recommends, we take your faith in us seriously. Every product that we feature comes personally recommended by a Marie Claire writer or editor, or by an expert we’ve spoken to firsthand.

How We Tested

Beauty writer Marisa Petrarca brings nearly a decade of expertise to this story and has researched and tested countless hair oils over the years. For this piece, she consulted five board-certified dermatologists for expert insight and tested specific products alongside other Marie Claire staffers. She evaluated each formula based on ingredient quality, texture, and effectiveness at smoothing hair, combating frizz, hydrating, and more.

Meet the Experts

Dr. Nicole Ruth
Dr. Nicole Ruth

Nicole Ruth, MD, is a New York City-based board-certified dermatologist practicing at Weiser Skin MD, specializing in medical, surgical, and cosmetic dermatology.

Dr. Robert Finney
Dr. Robert Finney

Robert Finney, MD, is a New York City-based board-certified dermatologist and the founder of Soho Skin and Hair Restoration.

Dr. Jeanie Downie
Dr. Jeanie Downie

Jeanie Downie, MD, is a board-certified dermatologist and founder of Image Dermatology ® PC in Montclair, New Jersey.

Dr. Rebecca Marcus
Dr. Rebecca Marcus

Rebecca Marcus, MD, is a board-certified dermatologist specializing in medical, surgical, and cosmetic dermatology, and founder of Maei MD.

Dr. Marisa Garshick
Dr. Marisa Garshick

Marisa Garshick, MD, board-certified dermatologist serving patients throughout Manhattan, New York at MDCS Dermatology: Medical Dermatology & Cosmetic Surgery, as well as an assistant clinical professor of dermatology at Cornell - New York Presbyterian Medical Center.

Marisa Petrarca
Freelance Beauty Writer

Marisa Petrarca is a writer and editor based in Saint Paul, Minnesota, specializing in beauty, wellness, fashion, and lifestyle. She previously served as the Senior Beauty and Fashion Editor at Grazia USA and Beauty and Style Editor at Us Weekly. Her expertise spans breaking beauty news, shopping roundups, product reviews, and explainer articles on popular topics in skin, makeup, and aesthetics. Her work has been featured in PS, Cosmopolitan, Allure, NewBeauty, InStyle, and The Zoe Report, among others. Marisa holds a bachelor's degree in English literature from Wagner College. Follow her on Instagram @Marisa Petrarca.