How To Use Rosemary Oil And Castor Oil For Hair Growth [Full Guide]

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Rosemary oil and castor oil are both great products to help with your overall health. They can help with minor health issues, help improve mood, and help your hair become healthier.

Many people that use these oils know how well it helps with the health of their hair. But, can you use castor oil with rosemary oil for hair growth? Studies suggest that they might be beneficial.

Below, I cover exactly what each of rosemary oil and castor oil are including what their benefits for hair are. I then discuss whether you should use castor oil and rosemary oil for hair growth either alone or mixed together by going through some studies into this.

I then give you some special recipes and instructions for how to use these products together to benefit your hair.

Click here to buy a beneficial rosemary and castor oil solution for your hair.

How To Use Rosemary Oil And Castor Oil For Hair Growth


What Is Rosemary Oil?

The use of rosemary oil goes back for centuries. It was considered a very valuable herb among the Greeks, Egyptians, and Romans. It was first documented as useful in the 16th century when Paracelsus, a German-Swiss physician, realized its abilities to strengthen the body.

Rosemary oil is extracted from the Rosemary herb, or Rosmarinus officinalis. The herb is a small evergreen plant that is part of the mint which also includes herbs like lavender, peppermint, sage, and basil.

Rosemary oil
Rosemary oil

Rosemary has had many uses throughout history, and it is still used today. It is a very sweet smelling herb. Many people use rosemary oil to improve their hair, skin, and even to improve memory. Rosemary can be used in cooking, as decoration, as a cosmetic, and as a medicine.

The oil has so many health benefits because of the high amounts of antioxidants. It is believed to improve memory, boost the liver, lowers cortisol levels, and helps fight cancer.

Click here to buy rosemary oil or see the latest prices.

What Are The Benefits Of Using Rosemary Oil In Your Hair?

Whether or not rosemary can help with hair growth, it is well accepted that rosemary oil can help you achieve healthier hair.

It Can Help Heal Your Scalp

Rosemary has anti-inflammatory properties that can help heal the skin of the scalp. It is believed that rosemary improves circulation in the scalp. It dilates the blood vessels, allowing for better blood flow into the scalp. When the scalp has better blood flow, the hair is able to take up more nutrients from the blood to stay healthy.

Not only that, but better circulation allows for better oxygen transport throughout the body. To stay healthy, the scalp needs lots of oxygen, so circulation throughout the scalp is very important.

When hair does not get enough oxygen and nutrients from the blood, it can result in hair loss or thinning. In this way, it’s believed that rosemary oil can prevent hair loss.

It Can Strengthen Hair

The properties in rosemary help hair to become stronger, and protect the hair from breaking. After using rosemary oil for awhile, people usually notice that their hair is thicker, softer, and shinier.

When the hair and scalp is healthier, it will also help prevent hair loss. Hair loss often occurs from damage and breakage, from eczema or psoriasis, from inflammation, or from chemotherapy treatments. A healthy scalp promoted by rosemary oil has the potential to prevent hair loss.

It Can Help With Itching & Irritation

Rosemary oil is a known anti-inflammatory, but it also contains the ingredient carnosic acid. Both of these things combined help to heal the skin and tissues of the scalp, relieving irritation and itching.

The oil can also be used to treat dandruff which often has the symptoms of itching and irritation. It can effectively treat dandruff because it has anti-bacterial and anti-fungal properties.

For this same reason, rosemary oil can also prevent infections in the scalp. It can’t treat infections, but it can prevent them and treat the symptoms associated with it.

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What Is Castor Oil?

Castor oil has been used for thousands of years as a natural treatment for constipation, wound healing, and constipation.

The oil is extracted from the seeds of the castor bean plant. The plants are native to Africa where the climate is warm and tropical.

To learn more about castor oil and how it can be used to help the body, check out this article.

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Seeds And Castor Oil
Castor Oil and seeds

What Are The Benefits Of Using Castor Oil In Your Hair?

There have not been as many studies done about castor oil to show that it is effective at growing hair. However, there is plenty of anecdotal evidence that shows castor oil likely helps promote hair growth.

It Helps With An Itchy Scalp

Like rosemary oil, castor oil is really effective at treating the symptoms of itchiness and irritation. This is because castor oil is very thick, making it easily able to penetrate the surface of the scalp.

Because it can easily penetrate the skin, it is able to keep the scalp moisturized, reducing the presence of dandruff and the feelings of itchiness and irritation.

It Can Prevent Infection

Also like rosemary oil, castor oil has antibacterial and antifungal properties that will prevent your scalp from developing an infection. This is especially important for people that have trouble with their scalp, like dandruff.

Castor oil cannot treat an active infection, but it can help prevent one from occurring. Also, if you do have an infection, it can help treat the symptoms like itching and irritation.

It Strengthens & Repairs Hair

Castor Oil has many vitamins and nutrients just like rosemary oil, making it quite effective at strengthening hair. It contains vitamin E and fatty acids which reduce inflammation.

Not only does inflammation reduce itchiness, dandruff, and a host of other issues, but it will help the hair become healthier. The nutrients improve the circulation in the scalp which will strengthen the hair follicles.

Castor oil can also restore your scalp’s natural pH if it has gone off. Castor oil has the same pH as a healthy scalp, and it penetrates well into the skin. So, if your scalp’s pH is off, castor oil can help to restore it.

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Should You Apply Castor And Rosemary Oil For Hair Growth? Does It Work?

There is not enough scientific evidence to suggest that rosemary oil will actually promote hair growth, despite a few studies being performed.

However, there is enough anecdotal evidence for many people to believe that rosemary oil can help.

Study #1

Doctor Markowitz of OptiSkin in New York City says that studies show that rosemary oil can effective for hair growth. Studies were completed in 2015 where humans with androgenetic alopecia compared the effects of rosemary oil and minoxidil.

The results showed that the rosemary oil was just as effective as the minoxidil. It even helped treat the side effects of alopecia better than minoxidil.

Dr. Shamban of AVA MD Dermatology says that patients have reported seeing more hair growth after using rosemary oil. She believes that it helps prevent hair loss from alopecia areata the best, but that it can also help with other hair loss issues.

Study #2

Another study was performed using rosemary leaf extract. Extract is a bit different than the oil, but it seemed to stimulate hair growth on the mice treated with testosterone.

The main reason that men lose their hair is because of an androgen called dihydrotestosterone (DHT). DHT causes the hair follicles to shrink and also shortens their lifespan. Based on this study, it seems that rosemary oil can prevent DHT from affecting hair follicles.

Study #3

Another study suggests that rosemary oil can help heal nerve tissue. Rosemary oil contains carnosic acid which healed and rejuvenated nerve endings in the scalp. Researchers believe that this healing could also promote new hair growth.

It certainly is possible that rosemary oil promotes hair growth, we just don’t know for sure. The effects of rosemary on hair growth needs to be studied further before we will have a definitive answer. Either way, you will certainly notice your hair appearing and feeling more healthy.

Castor Oil

There have not been as many studies done on castor oil to know if it helps promote hair growth. However, it can certainly help your hair become healthier, and the experiences of many people suggest that it may help.

Castor oil vs rosemary oil for hair growth? Which is better? The studies completed suggest that rosemary oil may be better, but they are both effective.

It may be possible to use rosemary and castor oil for hair regrowth.

If you are looking for natural ways to improve your hair growth, a mixture of castor oil and rosemary oil might do the trick. Researchers still need to perform more studies to know for sure if the oils help with hair growth.

Still, there is a good chance that they do, and in any case, your hair will become noticeably healthier.

Castor oil being added to hair with dropper
Castor oil to hair

How To Use A Castor Oil & Rosemary Oil Mix For Hair Growth

There are many different ways that you can use rosemary and castor oil to help with your scalp health. No matter what you prefer, there is a method for everyone. Here are a few methods and recipes to help you get started…

Apply The Oils With A Special Solution

You can buy a special hair solution with rosemary and castor oils to apply to your hair quickly and easily.

Find some options here.

Add The Oils Directly To Your Shampoo

This is certainly the easiest method. You can use whichever shampoo you usually use, and simply add a few drops of rosemary and castor oil to the bottle.

Make sure that you thoroughly shake and mix the shampoo, and then continue to use it as normal.

Make The Oils Into A Spray

If you want an option that is not so thick, you can always create a spray. To create the spray, it’s as easy as mixing a few ingredients together. See the recipe below.

You can then spray the mixture over your hair and leave it. It is most effective if you apply the solution at bedtime, waiting to rinse it out until morning.

If you’d like to rinse it out right away, just make sure to let it sit for 5-10 minutes first.

[mv_create key=”20″ type=”recipe” title=”Rosemary Oil And Castor Oil Scalp Spray Recipe” thumbnail=””]

Massage The Oils Directly Into Your Scalp

You can also massage the oils into your scalp. This is most effective when done after a bath or shower when your hair is already wet.

Because the oils can be strong and irritating on their own, you should mix the oils into a carrier oil (e.g. coconut oil, argan or jojoba oil) before massaging it into your scalp.

If you’d like, you can leave the mixture in your hair as a leave-in conditioner. You can also rinse it out 5-10 minutes after adding it to your hair and scalp.

Rosemary And Castor Oil For Hair Growth — Earthy Scent Recipe


Tropical Scent


Fresh Scent


For all three of these recipes, you can simply follow the above directions to massage the mixtures into your scalp.

Click here to buy castor oil or here for rosemary oil.

You can also buy a rosemary and castor oil solution specifically for hair which is the easiest way to get the benefits. Click here for some options.


Researchers are still not sure how effective castor oil and rosemary oil are at promoting hair growth. Anecdotal evidence shows that castor oil may help with growth, and a few formal studies show that rosemary oil may be effective as well.

Although we don’t know for sure whether these oils help with hair growth, you can be sure that they can help with hair health. They can help with itchiness and dandruff, as well as overall shininess and smoothness. Either way, you can’t go wrong with rosemary and castor oil.

Learn more ways to improve your hair with castor oil with our full guide to using castor oil with aloe vera on your hair here or using castor oil with tea tree oil here or castor oil with lavender oil here. Find all our guides to using castor oil here.

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