Does Rosemary Oil Thicken Hair? Factors That Causes Hair Thinning!

Rosemary oil is an essential oil derived from the leaves of the rosemary plant, scientifically known as Rosmarinus Officinalis. A native to the Mediterranean, the herb is steam distilled to extract the oil which has multiple uses. It has a distinct herbal fragrance which makes it ideal for aromatherapy and massages. However, the possibility of it being the ultimate skin care and hair care elixir is not too far-fetched either.

What Causes Hair Thinning?

 Hair thickness can be influenced by various factors, and when hair doesn’t appear to be thickening, it could be attributed to a combination of genetic, environmental, and lifestyle factors. These include-

1. Genetics And Age

Like most of your other features, your genetic makeup could decide the thickness of the hair. Your age could also be a determining factor when it comes to your hair volume.

2. Stress

Stress can not only lead to hair fall but also hair thinning as it upsets the normal growth cycle.

3. Environmental Factors

These include UV radiation and harsh weather conditions that the hair is exposed to.

4. Poor Hair Care Habits

This could include overwashing, underwashing, and using products that don’t suit your hair.

5. Use Heating Products

If you use curlers or straighteners daily with a heat protectant, it could lead to hair thinning extensively.

Does Rosemary Oil Thicken Hair?

 The scientific pieces of evidence that prove that rosemary oil thickens hair needs more ammunition. However, the anecdotal pieces of evidence are plenty.

Rosemary Oil

Moreover, certain research groups have been able to see volumized hair growth in those who used rosemary oil compared to those who didn’t. It does so by

1. Improving Circulation

Rosemary oil can activate components that activate blood circulation. When applied to hair, it may dilate blood vessels enhancing the flow of oxygen and nutrients to hair follicles. Improved circulation can support the hair follicles to consume nutrients in a better way which in turn would enhance their growth. Adequate blood flow is essential for the nourishment of follicles and promotes thick hair bulbs.

2. DHT Inhibition

It is a hormone associated with hair loss especially when the person is diagnosed with alopecia. Studies have been able to demonstrate that rosemary oil can inhibit the production of this hormone that can help grow boundlessly and with great inner volume. This can also slow down the process altogether which can be exploited by people with certain medical conditions or age.

3. Anti-inflammatory and Antioxidant Properties

Rosemary oil contains compounds like Rosmarinic acid which reduces oxidative stress. Besides, healing inflammation, the scalp becomes a conducive environment for hair to grow. Prevention against oxidative stress may give the hair follicles a chance to get protection against damage.

4. Strengthening Hair

Rosemary oil also prevents hair breakage of the hair by helping it to grow stronger from the roots. Stronger hair is less prone to damage as well as breakage. Over time as its tensile strength increases, hair could appear to grow thick.

5. Improved Hair Texture

Besides providing strength, it can reduce frizz significantly. An improved texture could give manageable hair that looks voluminous even if the strands are not thicker.

How To Use Rosemary Oil To Thicken Hair?

 Using rosemary oil to potentially promote hair thickness involves incorporating it into your hair care routine. It could be used as suggested below-

1. Use A Carrier Oil

Rosemary oil is highly concentrated and applying it to the hair with a carrier oil could be potentially harmful/ So make sure you add some coconut or jojoba to lighten it.

2. Dilution

Mix only a few drops of rosemary oil with carrier oil rather than doing the other way around. You could use 3-5 drops of rosemary with every tablespoon of carrier oil.

3. Application

Part the hair into two and apply it directly to your scalp. You could either use a dropper or finger to massage the drops deep into your scalp.

4. Leave It On

Never wash it right away. The oil should remain in your hair for at least 30 minutes for it to take effect. Leaving it overnight could also be effective.

Read More:- Rosemary Water Recipe For Hair Growth – Easy Steps To Prepare!


Rosemary oil can be part of your healthy haircare regimen but it doesn’t stop there. Its active ingredients like rosmarinic acid boost circulation in the scalp, stimulating follicles and increasing growth. Massaging rosemary oil regularly onto the scalp and hair can reduce hair loss while encouraging new growth.

When used consistently over time, rosemary oil is an effective natural remedy to counter thinning hair and add overall volume and thickness. Combining it with other ingredients can further boost results.

Dr. Jessica Rivera has more than 10 years of experience in the cosmetic industry as a hair care specialist. As a licensed cosmetologist, she has an in-depth understanding of hair and scalp health and a strong desire to support others in achieving their hair goals. Dr. Jessica is also a reputable author and supplement reviewer, specializing in hair care products and ingredients. Her engaging and informative writing style makes complex topics accessible to a wide audience. Dr. Jessica is committed to assisting her readers in making well-informed decisions regarding their hair care routines in order to attain healthy, beautiful hair.

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