Best Hair Oils for Growth, Scalp Health & Shine: A Complete Expert Guide

Human written by Dr. Heather Smith. Links are non-affiliate.

The best hair oils combine specific carrier oils with potent botanicals that target the needs of your scalp and follicles. 

When you google the best hair oils, you're going to see a lot of great articles with long lists of tested and reviewed products available for you to buy and try. 

But how do you know what to choose?

Can you read the ingredient label and know whether it will be right for you and your hair? The last thing you want is to end up with a greasy mess!

Before you jump onto Applepay and start shelling out your hard-earned dollars, learning some baseline facts will help you choose the best hair oil for you.

Hair Oil Basics to Know Before Starting

A quick anatomy lesson 🙈

Your scalp contains the same 3 layers as the rest of the skin on your body and each has the same purpose. However, the microenvironment is very different because of the density of hair follicles and differences in the moisture, oils, and microbiome.

What is a Hair Oil?

A hair oil is an oil-based product applied to your scalp, hair follicles.

They are generally waterless and contain a combination of carrier oils, botanical extracts, essential oils, or other active ingredients.

What are the Benefits of Hair Oils?

There are many potential benefits to using oils on your hair, scalp, and follicles. Carrier oils are usually cold-pressed and unrefined from the seeds and nuts of various fruits and vegetables. They contain anti-inflammatory, antioxidant, antibacterial, and antifungal fatty acids, vitamins, and phytonutrients. 

When applied to the scalp and hair, benefits of hair oils include:

• Seals in moisture for the hair and scalp
• Increased shine and manageability
• Soothing and healing of some scalp conditions like dandruff and itch
• Potential to stimulate hair growth or prevent hair loss
• Protection from surfactants and heat damage from styling
• Reduced split ends
• Relaxation and wellness from massage and aromatherapy 

Is Silicone a Hair Oil?

No. Silicone feels slick and is water repellant, so there are a lot of similarities.

Silicone-based hair products add extreme shine and glossiness as they coat the hair. They are generally styling products that help with hold, texture, heat protection, shine, and reducing frizziness (note: hair oils do all that too).

However, they aren't a targeted treatment (like hair growth or scalp conditions), and they aren't considered to be natural in the same way as a plant extract or cold-pressed carrier oil. 

How to Use Hair Oil for Maximum Results

Hair often suffers from over-washing. Usually, people need to shampoo much less frequently than they do. This is because the surfactants in shampoo are harsh and stripping.

If you have normal or dry hair, you can use small amounts of oil at any time. Apply a few drops onto your hands, rub them together, then smooth them over the hair. This method works well for shine and dryness, especially at the ends. 

Everyone, even people with oily scalps, can benefit from more intensive oil treatments at bedtime. In particular, on the nights before you know you're going to shampoo. On these nights, you can be a bit more liberal. Get some oil right onto your scalp and massage it in. Also, gently brush or comb some oil through. Don't overdo it because you need to resist the temptation to aggressively shampoo it all out the next day. Just wake up, have a standard shower, and do your usual shampoo and condition.

If you don't like sleeping with oil in your hair, you can use a cap to protect your bed linens. Or, you can do the same steps as a mask and just let it sit for an hour or two before washing.

Always apply oils to dry hair; wetness will repel the oil away from the hair and follicle.

If you're considering the derma-rolling technique for hair growth, be sure to discuss the addition of any oils or products with your treatment prescriber. 

Can You Use Face Oil on Hair (or Hair Oil on Beards)?

Of course.

While brands trying to market you ten different products will work hard to make you think you need a specific product for every body part, there is a lot of overlap in the face oil and oil serum worlds.

Like we say below about beard care, it's far more critical to match the right oil to your skin type than to have a separate product for each body area.

If you know your ingredients and what you're after, using a face oil on your hair or using a hair oil on your beard will be fine!

Hair is hair.

Men have a unique situation concerning facial hair follicles and the presence of testosterone. If oiliness and acne are a concern, it's more important to use oils that are appropriate for your skin type than it is to use an oil specifically designed for hair. In this article, we discuss beard care in more depth. 

13 Best Hair Oils and Why They're Amazing 

We've reviewed the data and anticipate the results of ongoing trials like this one using hemp to be useful. However, much of the knowledge that's passed on about topics like this is historical and word of mouth. 

These are the 13 best hair oils and some reasons why we love them:

• • Coconut
  • Rosemary essential oil
  • Peppermint essential oil
  • Castor oil
  • Jojoba oil
  • Argan oil
  • Grapeseed oil
  • Amla oil
  • Eclipta alba extract (the scientific name for Bhringraj oil)
  • Black cumin seed oil 
  • Radish seed oil (daikon seed extract)
  • Sweet almond oil
  • Hibiscus oil

Coconut Oil

Coconut oil is high in medium-chain fatty acids, particularly lauric acid, which penetrates the hair shaft to provide moisture, reduced protein loss and improved hair strength and elasticity. Its chemical makeup allows it to penetrate hair the best, making it an effective conditioner. Coconut oil reduces damage caused by combing and brushing and protects hair from environmental stressors. Additionally, it has anti-inflammatory properties, which can help with scalp conditions such as dandruff and eczema.

Rosemary Oil

Rosemary essential oil is known to promote hair growth and improve thickness. The reason has to do with increased blood circulation in the scalp. Additionally, rosemary oil has antiseptic and anti-inflammatory properties, effectively treating various scalp conditions, such as dandruff, eczema, and psoriasis. It's also found to have natural DHT blocking properties, a hormone that is known to cause hair loss. Research suggests that rosemary oil applied to the scalp can increase the number of follicles and hair thickness.

Peppermint Essential Oil

Peppermint essential oil is rich in menthol, which is also known to stimulate blood flow to the scalp to promote growth. The oil also has a cooling and refreshing effect, which can help to invigorate the scalp, reduce itching, and soothe any irritation. Menthol is also a natural anti-inflammatory and antimicrobial. The oil's high content of menthol also makes it a great hair tonic, providing a cooling and refreshing sensation to the scalp. 

Essential oils shouldn't be used full strength on the scalp. Both rosemary and peppermint oils should be diluted with one of the other oils on this list before applying.

Castor Oil

Rich in ricinoleic acid, an omega-9 fatty acid, castor oil has long been a favourite for use in hair. The oil is thick and viscous, making it an effective sealant, helping to lock in moisture and protect the hair from damage. Castor oil has been traditionally used for hair growth, nourishment and thickness, and there is some supporting evidence for this.

Jojoba Oil

Jojoba is a liquid wax closely resembling the scalp's natural sebum. It's rich in fatty acids such as oleic acid, linoleic acid, and wax esters, which are known to be beneficial for hair health. In addition, Jojoba oil is non-greasy and easily absorbed. It's particularly helpful for dry and damaged hair, as it can help to repair and strengthen the hair shaft, preventing breakage and split ends. Jojoba oil is also known to have anti-inflammatory properties, which can help to soothe an irritated scalp and help with conditions such as dandruff and eczema.

Argan Oil

Argan is another all-around excellent hair oil. Being high in oleic and linoleic acids and Vitamin E makes it protective and nourishing. Argan oil is particularly effective in treating dry, damaged, and chemically treated hair. Its high content of antioxidants and fatty acids helps to repair and strengthen the hair shaft, preventing breakage and split ends. It also helps to tame frizz and flyaways, leaving hair smooth and shiny.

Grapeseed oil

Another great all-purpose hair oil is grapeseed. Grapeseed oil has a light and non-greasy texture, making it easily absorbed by the hair and scalp. It's also a good natural emollient, which can help hydrate and moisturize the hair, leaving it soft and shiny. Studies have found that grapeseed oil can also help to strengthen the hair, reducing breakage and split ends. It doesn't have many of its own outstanding qualities, but that makes it excellent for diluting essential oils or for people with sensitive or irritable skin.

Amla

Amla oil comes from the Indian gooseberry. A longstanding favourite in traditional Ayurvedic practices, it is commonly used as a natural hair conditioner. Amla oil is also rich in tannins and flavonoids, which have anti-inflammatory properties, making it another effective treatment for scalp conditions.

Bhringraj Oil

Another frequently used hair oil in Ayurvedic practices is Eclipta alba (Bhringraj oil). The plant is rich in phytosterols, flavonoids, and alkaloids. Bhringraj oil is felt to be beneficial for hair due to its ability to promote hair growth, strengthen the hair shaft, and prevent hair loss. The oil is also has anti-inflammatory properties and used for scalp conditions.

Black Cumin Seed Oil

Black cumin oil is derived from the Nigella sativa plant. It's rich in fatty acids and antioxidants and used as a natural hair conditioner and scalp treatment. Additionally, it's been found to be effective in regulating the scalp's natural oil production and may help prevent hair loss.

Radish Seed Oil (Daikon Radish Seed)

Daikon radish extract is an oil with silicone-like texture. It has a unique, light, sensory component that makes it useful as a natural alternative to silicone.  It is a sustainable cover-crop with rapid germination rates, so it can be an ecologically favourable crop. 

When applied to hair, it helps nourish and strengthen the hair shaft, improving the overall health and appearance of the hair. This encourages healthy hair growth via improved root health in addition to softness and shine.

Sweet Almond Oil

Sweet almond oil is a versatile emollient with a lightweight texture. Its balanced fatty acid profile makes it a natural conditioning agent. It's a rapidly renewable resource, making it an environmentally friendly option.

When incorporated into hair care, it deeply nourishes and strengthens the hair fibers, boosting overall hair health and aesthetics. It promotes healthy hair growth through improved scalp health while imparting softness and luster.

 Hibiscus Oil

Hibiscus oil didn't make it onto our original list of top hair oils until we started formulating our upcoming hair and scalp strengthening oil. The subtle aroma is enticing, but the claim to fame is that this oil is mildly toning and astringent. Hibiscus extract is associated with stimulating hair growth, and the carrier oil retains all oil-soluble fatty acids and phytochemicals.

Top Hair Oils Compared: Which is Best for You?

Bhringraj Oil vs Amla Oil: Which Ayurvedic Herb is Right for Your Hair?

Quick answer: Use Bhringraj oil (Eclipta alba extract) for stimulating hair growth and reducing shedding. Choose Amla oil for strengthening and conditioning your hair with a rich base of nourishing carrier oil.

Combine them: Many Ayurvedic hair oils contain both Bhringraj and Amla for a synergistic boost in strength, shine, and growth support.

Castor Oil vs Coconut Oil for Hair: Two Classics Compared

Quick answer: Use castor oil for scalp treatments and targeted regrowth. Choose coconut oil for deep strand conditioning and protection from protein loss.

Tip: Blend castor and coconut for a growth + conditioning duo. Many DIY growth oils use this base.

Amla Oil vs Rosemary Oil: Strength vs Stimulation

Quick answer: Use amla oil for deep conditioning and shine. Opt for rosemary oil to stimulate circulation and support regrowth in thinning areas.

Consider alternating: Use rosemary-infused oil 2x/week for stimulation and amla oil as a weekly conditioning mask.

Of course, there are many other oils that can be used for hair, but these are our favourites due to their long history of successful use. 

Hair Oil FAQ

How often should I oil my hair?

There’s no one-size-fits-all answer. Some people benefit from a few drops daily for shine and dryness, while others only need a weekly scalp treatment. If your hair is oily, start slow and see how your scalp responds.

Can hair oils actually help with hair growth?

They might. Certain oils like rosemary, peppermint, and castor have data (or tradition) behind them. Oils won’t override your genetics, but they can support scalp health, reduce breakage, and create a better growth environment.

What’s the best way to apply hair oil?

For leave-in shine: rub a couple of drops between your palms and smooth over the mid-lengths and ends. For a deeper treatment: massage oil into the scalp before bed (especially the night before shampooing), then wash as usual the next morning.

Can I leave hair oil in overnight?

Yes! Just don’t overdo it. You want hydration and softness, not a greasy pillowcase. Use a towel or shower cap if needed.

Are oils okay if I already have an oily scalp?

Yes, but choose lighter oils like grapeseed or jojoba. And go easy—focus on the ends or use oil as a pre-shampoo treatment.

Do hair oils protect from heat styling?

Not reliably. Some oils add a layer of slip and smoothness, but they aren’t true heat protectants. If you're reaching for the flat iron, consider adding a dedicated heat protectant into the mix.

Can I use my face oil on my hair?

Go for it. Many of the best oils for skin and scalp overlap—argan, jojoba, rosehip. Just be sure the formula doesn’t include anything irritating to the scalp (like strong actives meant for facial use only).

Will hair oil help with dandruff or scalp irritation?

Some oils have antifungal or anti-inflammatory benefits (think tea tree, neem, peppermint). But if you have a true medical condition like seborrheic dermatitis, speak with your healthcare provider for personalized care.

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