Several scientific studies have found that certain oils can help you grow your hair faster. The proper oil can help you obtain those long, flowing locks you have dreamt of. Here, we have talked about the best Scientifically proven Oils for Hair Growth & Thickness and their scientific evidence.
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Coconut Oil
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Rosemary oil
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Argan Oil
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Olive Oil
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Peppermint Essential Oil
Coconut Oil

Quite often Coconut oil is regarded as the greatest oil for reducing protein loss and maintaining a healthy appearance in hair.
It would be simple to dismiss this as a fad, given the current popularity of coconut oil. This allegation is, nevertheless, backed up by some evidence. The benefits of adding coconut, sunflower, or mineral oil to hair before or after shampooing were studied in one study. (Source)
The researchers examined the amount of protein lost by the hair after each of these treatments to see which oil was best for protecting hair health.
When applied before or after washing the hair, coconut oil was found to be more effective at preventing protein loss than both mineral and sunflower oils.
In fact, coconut oil came out on top in every study, reducing protein loss in hair that had not been harmed, had been bleached, had been chemically treated, or had been exposed to the sun.
Mineral and sunflower oils, on the other hand, did not have this impact and were not proven to be useful in lowering protein loss from hair.
Coconut oil’s enhanced ability to protect hair is assumed to be due to its chemical structure.
Lauric acid, a medium-chain fatty acid, makes up the majority of coconut oil. Coconut oil has a long, straight structure, making it easier to penetrate deep into the hair shaft.
Coconut oil has natural antibacterial and antifungal qualities, making it ideal for relaxing the scalp. Virgin coconut oil has also been shown in studies to be anti-inflammatory, which is an excellent antidote to hair loss. Given that inflammation is the physiological cause of hair loss, anything anti-inflammatory would be beneficial to the scalp.
Coconut oil can help you grow thicker, longer hair by doing the following:
- When your hair is damp, it protects it from protein loss and damage.
- Moisturizing and preventing hair breakage.
- Keeping your hair safe from the elements such as wind, sun, and smoke
- To get the most out of coconut oil, you’ll need to incorporate it into your beauty routine on a daily basis.
You’ll need to incorporate it into your beauty routine on a daily basis to get the most out of coconut oil.
Rosemary oil

Rosemary is a medicinal herb as well as culinary. Rosemary is found in the Mediterranean region, where it has been used for generations as medicine and food.
Essential oils of rosemary, like cinnamon, peppermint, and oregano, are widely available. Essential oils like Rosemary have purified extracts of volatile plant components that are highly concentrated. These are used for a variety of functions, including cooking, beauty, cleaning, and health.
Rosemary essential oil is a common type of essential oil that you can buy and use at home. The oil’s health benefits include antioxidants and anti-inflammation, as well as memory enhancement and other benefits.
In recent years many claims that Rosemary oil can help with hair growth and thickness. Some claim it can even prevent loss of hair, citing the usage of hair rinses with rosemary to encourage hair growth in Mediterranean civilizations for centuries as proof.
Recent research has revealed that rosemary directly aids in the prevention of hair loss. In a 2015 study, the essential oil was compared to minoxidil, which is sold as Rogaine. Both treatments were tested on men with androgenetic alopecia. (female or male pattern baldness). (Source)
Rosemary essential oil was found to be just as effective as minoxidil. It was more effective than minoxidil at alleviating the side effect of itchy scalp during the procedure.
Rosemary’s hair-growth potential has also been acknowledged in two different clinical assessments, one from 2010 and the other from 2011. The former cites a research that found essential oils helped persons with alopecia restore their hair. Rosemary was one of these essential oils.
Another study found that rosemary leaf extract (which is not the same as the essential oil) increased hair growth. This happened when testosterone promoted hair loss (as in pattern male/female baldness). However, this research was carried out on mice.

Applying rosemary oil to your hair can provide a number of benefits, but if done improperly, it may cause more harm than good. To know more check this article on How to Scientifically Apply Rosemary Oil on Hair
Peppermint Essential Oil

When looking for natural hair loss treatments, peppermint oil is frequently mentioned as an alternative to pharmaceuticals like minoxidil and finasteride.
Peppermint essential oil is a well-known essential oil. It has a nice, refreshing scent as well as a cooling effect, making it a popular ingredient in natural shampoos, conditioners, and other personal care products.
Peppermint has just recently been used to stimulate hair growth. It isn’t backed up by long-standing traditional evidence, and it hasn’t been well researched. Peppermint essential oils have just recently become widely available to the general public.
However, a recent 2014 mouse study found that peppermint essential oils had a lot of potential for hair growth. Hair grew faster and thicker, and blood flow to undernourished hair follicles increased, according to the researchers. The findings pave the way for further research into the benefits of peppermint essential oil for human hair development. (Source)
Despite the fact that peppermint oil is frequently suggested as an excellent essential oil for encouraging hair growth, scientific research into its effects is currently restricted. To better understand the effects of peppermint oil on hair development, more research is needed.
On the skin or scalp, peppermint oil should not be applied at maximum dosage. It should be blended in with a hair product or diluted with a carrier oil like jojoba or coconut oil.
When menthol is breathed, products containing peppermint oil should not be applied to the face or chest of babies or children, since they may cause respiratory problems. Also, avoid applying the oil to the sensitive skin surrounding the eyes and the two eyes themselves, since this can cause burning, irritation, and pain.
Olive Oil

The oil produced from the olive fruit is known as olive oil. It’s an important part of the well-known Healthy diet.
Polyphenols, which are highly bioavailable antioxidants, are at the heart of olive oil’s healing qualities.
Tyrosol, Oleuropein, and Oleocanthal are the three most prevalent polyphenols among the numerous.
Each one functions in a unique way. They work on a variety of signalling pathways to boost your health. Is it, nevertheless, beneficial to hair?
It has ushered in a fresh wave of research due to its health advantages and longevity-promoting characteristics.
Researchers discovered that applying olive-tree-derived compounds boosted hair growth in rats in a 2015 study. However, this study does not provide us with all of the information we require about olive oil and hair growth. (Source)
Olive oil has showed promise in reducing and preventing split ends. Olive products may also have antimicrobial characteristics, which could help keep your scalp healthy.
While there is no proof that olive oil encourages hair development, we do know that it offers preventive and nutritional properties that may help your hair look and feel healthier. Treating your hair with olive oil over time may help to strengthen your hair follicle, extending the life of each hair and giving the impression that your hair is growing faster.
Finally, olive oil is a cost-effective alternative hair treatment, and there’s no reason not to try it.
Do you know that if not done properly, oiling your hair with olive oil can actually do more harm than good? Check this detailed article on How to Apply Olive Oil on Hair in 6 Steps
Argan Oil

Argan oil, also known as “liquid gold,” is derived from the fresh kernels of the argan tree’s fruit in Morocco. It is largely made up of oleic acid (43-49%) and linoleic acid (29-36 percent ). Vitamin E and carotenoids are two types of powerful antioxidants found in it. For generations, pure argan oil has been used in cooking and as a home cure for health and beauty issues, including hair loss. It’s now used in a variety of hair and skin care products.
There hasn’t been adequate research done on Argan oil for hair. The only thing that everyone agrees on is that it helps with dry hair. So we have done research on the individual components of argan oil in order to comprehend its benefits. (linoleic acid and oleic acid).
- Linoleic acid benefits the health of the skin, including the scalp. Healthy hair growth depends on a healthy scalp. Even so, argan oil does not contain a substantial amount of linoleic acid (29-36 percent).
- Oleic acid inhibits hair development by activating protein kinase C. It also reduces barrier function, which is bad for your skin’s health. However, it may allow other helpful substances to penetrate more deeply.
Conclusion: Argan oil, like sunflower oil, contains linoleic acid. This does help to avoid frizz and breakage to some extent. It does not, however, prevent damage. Overall, coconut oil outperforms argan oil in terms of hair health.
Do you know that if not done properly, oiling your hair with argan oil can actually do more harm than good? Check this detailed article on How to Apply Argan Oil to Hair in 6 Steps
Final Thoughts
Millions of men and women suffer from hair loss, which can have a detrimental effect on a person’s emotional and social well-being.
Hair loss can create “dramatic and sad feelings,” according to research published in the Journal of Health Psychology, leading to issues with self-esteem and confidence.
Hair oil may be worth a try if a person is unhappy with their hair because of its overall safety and low chance of side effects when taken topically and in the proper dilution.
If a person’s hair loss happens suddenly and without a clear explanation, they should consult a doctor to rule out any underlying health issues.
Disclaimer: The FDA does not monitor or control the purity or quality of essential oils, despite the fact that evidence suggests they have health advantages. Before you start using essential oils, talk to your doctor and do some research on the quality of the brands you’re considering. Before using new essential oil, always perform a patch test.

Creative, versatile, and passionate about her craft, Rupa Das is a well-recognized name in the world of fashion and makeup! This is a woman who has been in the fashion and makeup industry for 24 years and is still one of the leading international makeup artist in the circuit! She has worked in big brands like Lakme, Green Trends, Colors and transitioned to become a Beauty (Hair & Skin) Trainer.