Rosemary For Hair Explained! Hair Loss And More…

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Rosemary essential oil is the distilled essence of the rosemary herb, which has been used for centuries in cuisine and medicine. Native to the Mediterranean region, rosemary is frequently distilled into an essential oil for its beauty and health benefits. Rosemary essential oil is readily available at any pharmacy or cosmetics store, its benefits are many, and it has been touted for its antioxidant and antimicrobial properties. In particular, rosemary may be one of the best oils to prevent hair loss and promote hair growth.

Rosemary oil has a plethora of advantages, including promoting nerve growth, increasing circulation, and having anti-inflammatory effects. Likewise, it is a great essential oil for people experiencing itchy scalp and other scalp issues like dandruff. This makes rosemary oil a popular additive to shampoos, conditioners and other hair care products.  Moreover, the addition of rosemary to hair products helps to improve both the quality and fragrance of these goods. This means that by adding rosemary to products, manufacturers can avoid using harmful chemicals to achieve a delicious-smelling product with many benefits.

Rosemary Essential Oil For Hair Growth


Fresh Rosemary

While still in its infancy, the research into using rosemary oil to promote hair growth has grown in popularity. Interest in using rosemary as a more natural way to effectively help with hair rejuvenation is on the rise. Using rosemary oil as a naturally-derived treatment on your hair and scalp can be a safer bet than other more chemically-laden manufactured products. Moreover, it is less costly and has fewer side effects than traditional pharmaceutical remedies for hair growth.

Rosemary oil is typically used for many forms of hair loss, to promote thicker locks. Specifically, many studies have focused on the effects of people using rosemary oil when experiencing androgenetic alopecia aka pattern baldness. This is the most common form of hair loss for men and women. While there is no conclusive evidence that rosemary oil causes hair regrowth, there are studies that point to its ability to mitigate certain common occurrences of hair loss.

Effectiveness Of Rosemary Oil

Back of blonde-haired woman in greenery.

Woman With Healthy, Thick Hair

A 2013 study on mice with testosterone-induced hair loss found that rosemary oil helped the rodents regrow their hair. The hypothesis for the trial’s success was due to the enzyme in rosemary oil binding with hormone receptors. This in turn prevented testosterone from attacking hair follicles.

Another study showed that people with testosterone-induced hair loss showed significant hair regrowth after 6 months of using rosemary oil. Rosemary oil has also been shown to help kill fungi and bacteria which can cause hair loss. Likewise, as it’s naturally derived, people with sensitive skin and allergies had better success and fewer allergic reactions than pharmaceutical alternatives.

Preemptively using rosemary oil may be of some benefit, especially if your family has a history of baldness or alopecia. Likewise, laboratory conditions have demonstrated that using rosemary oil on mice promotes blood flow and circulation to the areas applied. Doing this helped to promote hair growth and resulted in thicker fur. While this is yet to be proven in humans, it has great promise in that it may be able to prevent hair loss and improve scalp wellness. However, it’s recommended to consult a doctor if you’re seeking to use rosemary as a supplement to more mainstream methods. 

Another of the most popular and common uses for rosemary oil (besides for hair growth) is to use it for its conditioning qualities. As a naturally-occurring conditioner, rosemary acts to regulate the production of hair oils. This is extremely beneficial for people with dry or damaged hair. Such types of hair can seriously benefit from deep conditioning treatments. Specifically. rosemary conditioner and other rosemary oil concoctions have lots of healing properties and can assist in repairing damaged locks. 

Carrier Oil For Rosemary Essential Oil

Carrier Oils

Carrier Oils

Like other essential oils, rosemary can irritate your skin if applied directly without diluting it with a carrier oil. We recommend diluting it to a ratio of 3-6 drops of rosemary essential oil to 1 tablespoon of carrier oil for topical application. We recommend diluting it with olive oil for no other reason but to keep in tow with the Mediterranean theme! However, there are many other equally effective carrier oils you can also use to dilute your rosemary essential oil. These oils include – but are not limited to – sweet almond, coconut, grapeseed, castor or jojoba

How To Apply Rosemary Essential Oil

Hand holding hair and essential oil dropper on top.

Applying Rosemary Essential Oil To Hair

There is no hard and fast rule for applying rosemary oil. However, in order to experience most of its hair growth potential, you should begin by using it once to twice a week. You may also decide to use it more than this, and play around with how many applications per week suits your hair care routine best. 

The most effective way to apply it to your hair and scalp is to add about 2-3 drops of rosemary oil to a teaspoon (5ml) of a carrier oil such as jojoba oil or castor oil. Massage this into your hair and scalp making sure to evenly coat all your strands with this mixture. Leave it in for 5-10 minutes before rinsing, or leave it in if you wish. You can also add 2-3 drops to your shampoo. Use it in this way once or twice a week for best results.

Here are a few ideas for some DIY rosemary oil treatments that you can easily add to your beauty routine:

DIY Shampoo With Rosemary Essential Oil

Woman washing her hair in the shower.

Woman Washing Her Hair In The Shower.

The thing about more natural shampoo, specifically if it’s homemade, is that it can be used exactly how you would with a store-bought shampoo. However, the natural ingredients mean that for the most part, you will notice that your hair requires fewer washes. We recommend that you only wash your hair around 2-3 times a week with this concoction. This is in order to retain your natural oils and use this homemade shampoo to help supplement more lustrous locks.

This incredible product helps to cleanse your hair while allowing your scalp and strands to receive all the goodness of rosemary oil. Furthermore, the benefit of this shampoo is that the rosemary helps to regulate the oil production on your scalp while improving circulation. All of this promotes hair growth and healthy locks. Additionally, it leaves you with deliciously smelling and luscious tresses! 

This homemade shampoo recipe combines both rosemary and peppermint essential oils to give you a wonderful shampoo blend for all your hair care needs.


  • ¼  cup coconut milk
  • ¼  castile soap
  • ½  tsp almond oil
  • ½  tsp manuka honey
  • 10 drops vitamin E oil
  • 10 drops rosemary essential oil
  • 5 drops peppermint essential oil


  • One 8 oz airtight bottle or container
  • Funnel


Combine the coconut milk and castile soap in a mixing bowl. In another bowl, stir the almond oil and manuka honey together until very well combined. Add the oil and honey to the coconut milk and soap mixture. Stir until thoroughly blended. Fold in the vitamin E oil and the essential oils and transfer the mixture to an airtight bottle or container for later use.

DIY Rosemary Essential Oil Spray

Woman spraying curly hair.

Woman Using Rosemary Spray

For your scalp, we recommend mixing 2% of rosemary oil with a base of either jojoba oil or aloe vera gel (for its soothing effect). You should aim to use this mixture every night for approximately 6 months. According to studies it can take around half a year of frequent rosemary oil use to start seeing the hair growth resulting in thicker hair. 

A very simple recipe for hair and scalp care is to make some DIY Rosemary Spray: 


  • 20 drops rosemary essential oil
  • 1 tsp carrier oil (almond, coconut or jojoba)
  • 8 oz distilled water


  • 8 oz spray bottle


Add the rosemary oil to the carrier oil and mix until incorporated. Pour the oils into the 8 oz bottle and fill the bottle up to the top with the distilled water. Shake vigorously before use and spray directly onto your roots before rubbing it in with your fingers. You can use this spray on your hair and roots every day, but preferably at night while your hair is wet or damp. We recommend using it consistently for at least 6 months so you can achieve desired results.  


One wonderful thing about rosemary oil is its incredible ability to help promote hair growth. Modern science and herbal medicine have all recognized that rosemary oil has a plethora of benefits that promote thicker locks. While scientists are still not 100% certain of how it works, there is a growing body of scientific studies focusing specifically on this issue. 

In particular, experts are still searching for why rosemary oil has such a positive effect on hair growth, circulation and cellular rejuvenation. However, with the studies ongoing, what has been shown is that rosemary has antioxidant, antimicrobial and anti-inflammatory benefits. These properties all assist in combatting hair loss, which is why rosemary is considered one of the best natural tools to add to your hair care routine, for treating hair loss and strengthening your roots!

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