How To Use Hair Oil Without Making Your Hair Greasy

If your hair has been looking especially dull, dry, or frizzy as of late, you may want to consider adding a leave-in hair oil to your routine. While the idea of putting oil in your hair might seem intimidating—especially if you have an oily scalp—learning how to use hair oil properly can help address a wide range of concerns, from dullness to frizz and even breakage. The key is to adopt a less-is-more approach, using a small amount and targeting the areas that need the most attention so your hair doesn’t get weighed down.

With so many different formulas and techniques to choose from, hair oil can fit into your routine in more ways than you might expect. Ahead, we’re breaking down six simple, effective ways to use hair oil, whether you want to target damage or give your go-to style a sleek, shiny finish.

What Oils Are Best for Hair?

Hair oil use goes back millennia, and even today, most hair oils are derived from natural ingredients, including plants, seeds, and nuts. According to a 2022 review published in the International Journal of Trichology, some of the most commonly used oils for hair include coconut, almond, and argan oils (though that’s far from an exhaustive list). If those sound familiar to you, don’t be surprised—many of these oils are also used in skincare products, particularly those designed for dry skin.

Different oils have different textures and, in some cases, different benefits. The best oil for your hair depends on several factors, including your hair type, texture, specific concerns, and how you plan to use it within your routine. With that being said, it's usually best to reach for an oil (or blend) formulated specifically for hair care—oils straight from your pantry may be too heavy and can leave your strands greasy or weighed down.

How Do You Use Hair Oil?

There’s no one “right” way to use hair oil—it all comes down to what your hair needs on a given day. Whether you're looking for damage control, frizz management, or a quick gloss boost, hair oil can do it all with the right approach. Ahead, discover how and when to use hair oil in your routine for healthy-looking strands.

1. As a pre-shampoo treatment

If you’re a first-timer wondering when to apply hair oil, try incorporating it into your pre-wash routine. This method, typically referred to as “hair oiling,” is perfect for giving dry or overworked strands a boost of hydration. Simply massage the oil throughout your dry lengths and ends, leave it on for a few minutes (or longer for a deeper treatment), then shampoo and rinse thoroughly before finishing with conditioner. You can also warm up the oil before applying it to your hair to help boost absorption.

2. To enhance shine

Hair oil is a simple way to boost shine and give your mane a smooth, glossy finish. To keep strands looking luminous rather than greasy, reach for a lightweight, leave-in hair oil, such as the L’Oréal Paris EverPure Bond Repair Hair Oil-in-Serum. Formulated with nourishing ingredients like castor oil, it enhances shine and softness without weighing hair down, while also helping to reinforce weakened hair bonds—making it ideal for anyone with dull or damaged strands. Apply it to damp hair before styling, or smooth a small amount through dry hair for an instant dose of glossy, healthy-looking shine.

3. To prep your hair for styling

Some oils, like coconut, olive, and sunflower, can penetrate the hair shaft, helping to smooth the cuticle and protect strands from damage caused by combing, brushing, or everyday styling. This makes your hair easier to manage, reduces breakage, and leaves it feeling softer and more resilient.

That said, hair oil isn’t a replacement for a heat protectant. If you’re planning to style with heat, layer your chosen oil with a dedicated heat-protecting product to shield your strands from high temperatures. Or, use an oil that doubles as a heat protectant, like the aforementioned L’Oréal Paris EverPure Bond Repair Hair Oil-in-Serum.

4. To detangle curly hair

If you have curly or coily hair and haven’t tried using hair oil yet, consider this your sign to give it a try. Hair oils can make a big difference when it comes to detangling and keeping curls soft and defined. Rub a few drops of oil between your palms, then gently massage it through your hair. Use a wide-tooth comb to work through knots, applying a little extra oil to particularly stubborn sections as needed. For the best results, start detangling at the ends and mid-lengths, gradually working your way up to the roots—this helps prevent breakage and keeps your curls looking their best.

5. To control frizz and flyaways

If your hair poofs up the second you step outside—especially in humid weather—you’re definitely not alone. Frizz can affect all hair types, but a lightweight hair oil can help tame flyaways and smooth strands. Apply one to two pumps of oil to dry hair, focusing on the lengths and ends to avoid weighing down your scalp. Your roots naturally produce oil (sebum), so they usually don’t need extra product unless they’re especially dry.

6. To protect against breakage

Although getting a trim is the most effective way to remove split ends and prevent breakage, you can still help protect your strands by incorporating hair oil into your routine. Hair oil can help keep hair hydrated and nourished, which may help prevent future split ends from forming.

If your hair is extremely damaged, it’s worth incorporating bond-repairing products into your routine as well. The L’Oréal Paris EverPure Bond Repair Hair Oil-in-Serum is designed to pair with the rest of the L’Oréal Paris EverPure Bond Repair line, which includes a pre-shampoo treatment, a sulfate-free shampoo, and a nourishing conditioner. Used together, the system helps strengthen brittle, damaged hair from the inside out, leaving it up to seven times stronger.

How To Choose the Right Hair Oil for Your Hair Type

Building a solid hair oil routine begins with choosing the right oil for your hair type. Not all oils work the same way—some are lightweight and great for fine hair, while others are richer and better suited for thick or dry strands. Picking the right formula ensures your hair gets the nourishment it needs without feeling heavy or greasy.

Fine, thin, or oily hair

If your hair is fine or tends to get greasy, you’ll generally want to stick with lightweight, fast-absorbing oils like argan or jojoba oil. Apply your chosen hair oil sparingly from the mid-lengths to the ends to avoid weighing down your roots. You can also prevent build-up by using a clarifying shampoo—such as the L’Oréal Paris EverPure Sulfate-Free Clarifying Shampoo—once or twice per week.

Thick or coarse hair

Richer oils such as coconut, castor, and olive oil are ideal for thick or coarse strands. These oils help provide intense hydration and smooth frizz while leaving hair soft, shiny, and manageable.

Curly and coily hair

Curly and coily hair often benefits from oils that moisturize and seal the hair shaft. Olive, jojoba, sweet almond, and castor oils can help define curls, reduce frizz, and lock in hydration.

Editor’s tip: How you layer your styling products can make a noticeable difference in how your hair looks and feels. Try the LOC (lotion, oil, cream) method if your hair is low-porosity, or the LCO method (lotion, cream, oil) method if you have high-porosity strands.

Dry or damaged hair

For hair that’s dry, brittle, or damaged, nourishing oils like argan, marula, and almond provide deep hydration and help strengthen weakened strands. Apply to damp or dry hair to maximize softness and shine. You can also help strengthen damaged hair by adding an oil-infused deep conditioner to your weekly regimen. We love the L’Oréal Paris Elvive Total Repair 5 Damage-Erasing Balm, which contains almond oil and a 17% repair complex to help strengthen weak, brittle strands.

For scalp care

If you plan to use oil on your scalp—either instead of or in addition to applying it to your strands—the type of oil you choose might differ. For a targeted scalp oil routine, opt for lightweight, fast-absorbing oils like jojoba or grapeseed. These oils help soothe dryness, balance natural oils, and support overall scalp health without leaving roots greasy or weighed down. Massage a few drops directly into your scalp to nourish and refresh, then style as usual.

Next Up: How To Use Leave-In Conditioner Based On Your Hair Type

Photo courtesy of L’Oréal Paris