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20 June 2022 / Laura Garvin Gomez

Rosemary Oil for Hair: The Benefits and How to Use It

Find out all the facts about this popular haircare treatment.

Rosemary Oil for Hair: The Benefits and How to Use It

We're constantly hearing about new ways to enhance and renew our haircare routines.

Recently, rosemary essential oil has come into the spotlight for its abilities to promote hair growth, prevent breakages and inhibit hair loss.

While studies suggest that this can in fact be the case, finding out the best ways to use this age-old remedy on your hair can be confusing and overwhelming if you don't know where to begin.

Thankfully, we're here to help with some top tips on how to use rosemary oil for hair, what the benefits are, and how to best incorporate it into your daily self-care routine.

The benefits of rosemary essential oil for hair

Known for its naturally restorative, health-boosting properties, rosemary oil has been used for years to combat a variety of ailments, and has a host of benefits for liver health, stress levels, and cognitive function among other things.

In recent years, however, these restorative properties have been most effective at combatting issues surrounding hair loss and general scalp health. But how exactly does rosemary help hair growth?

It boosts circulation

According to a study conducted in 2013, rosemary is known to increase heart rate and respiratory rate when inhaled. This boost in circulation allows for increased blood flow throughout the body, including to the scalp and hair follicles.

This in turn provides a host of benefits for the hair, as the scalp feels stimulated to produce growth as well as facilitate a renewed environment for thickness and hair health.

It soothes and heals the scalp

Due to its known anti-inflammatory properties, rosemary essential oil can be used to help soothe the scalp of irritation and itching, resulting in a healthier environment for faster hair growth.

A 2017 study assessing the effects of rosemary oil on the skin concluded that it also helps to increase hydration in the scalp as well as improve its elasticity.

Rosemary essential oil's antibacterial and antifungal properties, determined in another 2017 study, may also facilitate improvements in hair growth if you are suffering from an infectious or unhealthy scalp. These same properties also help to reduce and prevent levels of dandruff in the hair over time.

It prevents hair loss

Researchers are constantly studying the effects of rosemary essential oil on hair loss, and many believe that the oil's ability to produce an improved scalp environment could be the main factor in its success against this particular ailment.

A 2015 study comparing rosemary oil to the popular hair regrowth treatment minoxidil found that rosemary actually produced more hair growth in DHT (testosterone-related hair loss) patients over a period of 6 months.

Irritation to the skin was also significantly reduced when using rosemary oil in comparison to minoxidil, adding to its effectiveness when it comes to soothing and healing the scalp.

Lavender stem and vial with oil in. How to use rosemary oil for hair

The most important rule when using rosemary oil for hair growth is patience and consistency. Like practically all hair at-home treatments, it can take a while for results to show up in the way you'd like them to - so don't expect a miracle to happen overnight!

For the best results, application to the hair and scalp must be regular (preferably daily) and completed as part of your normal hair care routine. If you're not sure how to go about actually applying it, here are some common techniques to help get you started.

1. Create your own hair mask

You may be wondering how to dilute rosemary oil for hair in a way that is effective and safe. In general, combining with a carrier oil and making your own treatment is the best and easiest practice, producing the best results for hair growth over time.

Combine the rosemary essential oil with your chosen carrier oil and massage evenly into the scalp. Leave in for at least two hours (between 4 to 6 hours is preferable, however) or leave to soak overnight.

Other natural ingredients such as ripe bananas, oats, honey, and rosemary tea can also be added to the mixture for a richer and more substantial treatment. You can find our recipe for how to make a hair mask using these additional elements here.

If you're seeking advice on the best carrier oil for rosemary oil, almond, coconut, and argon are all popular choices for promoting healthier hair.

2. Add to your shampoo and/or conditioner

This one's pretty self-explanatory. Simply add 10-12 drops into your existing shampoo or conditioner and shake well. Use as normal in the shower or bath, preferably applying daily or every two days.

Although this process is slightly less effective than direct application with a carrier oil, it makes for an easy solution if you're short on time or don't fancy making drastic changes to your routine.

3. Make a treatment spray

This method is particularly great for those of us with curly hair who could use some extra moisture, strength, and hold alongside that all-important hair growth.

Mix water, witch-hazel water, and rosewater together in a spray bottle, add 8-10 drops of rosemary oil, and shake. Spray on top of damp hair and use your fingers to spread evenly throughout. Alternatively, a carrier oil can also be used instead of the waters to produce the same effect.

Looking for a more in-depth recipe? Check out our blog post on how to make a homemade, all-natural curl treatment spray here.


  • As with all natural products, always carry out a patch test before use on the hair and scalp and seek medical advice if required.
  • Never use rosemary essential oil undiluted, as doing so could result in irritation.
  • Avoid use if you are pregnant or breastfeeding.
  • Avoid contact with eyes and mouth.

When used properly, rosemary essential oil can be a fantastic natural remedy for hair growth. The soothing and enriching properties of the oil can help repair thinning and damaged hair as well as prevent any further ailments from occurring.

Although it can usually take up to 6 months to see results in your hair, don't give up! Your scalp will thank you in the long run with stronger, longer, and healthier locks.

Shop our rosemary essential oil here.

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