By the use of essential oils, we can improve oral health and ease nausea by treating insomnia. It is no secret that with time people start using concentrated plant extracts on their skin, as the essential oils improve hair health and even encourage growth.

On TikTok, the hashtag #hairoil has racked up many billion views, with individual videos getting millions of views on pop. Many influencers show healthy, long, gorgeous hair that they get from homemade oils which are responsible for shine and growth as well.

Hair loss is a common concern, usually, hair loss increases because of physical stress. Many people are concerned about shedding and thinning and are looking for treatment options.

Many hairstylist agrees that hair growth is a hot topic, as many people lost hair during Covid-19.

What does, however, help to restore someone's thick, luscious locks—and what is merely social media chitchat—is less obvious. Here are seven oils to consider in your beauty regimen, typically rated from most to least in terms of how much scientific evidence supports their usage for healthy hair.

1)      Argan Oil

A tree native to Morocco, an argan oil derived from the fruit of Argania spinosa.

Argan oil can be used on skin and hair both, and it can be used to heal wounds as well. Frizziness and breakage can be reduced by using this oil from mids to ends. If you use this on the scalp it can help in the healing of dandruff and increases hair growth.

It is a popular hair product, The idea that argan oil is healthy for your hair is partially true. It includes linoleic and oleic acids, two fatty acids that have a variety of advantages, including improving the skin barrier, moisturizing the scalp, and reducing inflammation. It makes your hair shinier and smoother, squalene is present in argan oil which protects the hair and also makes it hydrate.

Straightener, curling hair and dryer damaging effects can be reduced by using argan oil, and protein loss can be prevented by using argan oil which can be done by heat treatments, Argan oil seems to enhance hair strength, reducing hair thinning and shedding, just like protein strengthens muscles.

Argon oil absorbs more easily into scalp and hair follicles because of it’s smaller molecule.

The ingredients in argan oil such as oleic acid and linoleic acid help improve the penetration of other ingredients into the hair and can reduce inflammation. Linoleic acid has a skin barrier-strengthening effect so dry hair becomes moisturized.

Argan oil also has antioxidants like polyphenols and vitamin E to help prevent free radical damage. Oxidative stress causes free radical damage in the organism. "Cellular disruption occurs when there is an imbalance of unstable oxygen atoms within the body, which is followed by inflammation, early aging, and illness."

2)      Avocado Oil

It is used in many hair and beauty products and also used in cooking, it is extracted from the pulp of fruit. This oil improves hair growth.

Because it contains a lot of monounsaturated fatty acids, which may enter the hair follicle, avocado oil is supposed to be moisturizing. It supports overall hair health, and it also nourishes and strengthens the hair. It can protect the hair from UV light and environmental exposure as it is rich in antioxidants. Although there isn't much study on avocado oil specifically, a 2015 review discovered that the minerals, especially those monounsaturated fatty acids, in avocado oil are useful for sealing hair cuticle cells and reducing breaking.

3)      Rosemary Oil

The steamed distilled from the flowers, leaves, and twigs of rosemary form rosemary oil. It does assist in promoting hair thickness and naturally healthy hair development, as well as circulation in your hair, which can again assist in promoting natural healthy hair growth. It can increase hair growth as rosemary is believed to increase blood flow.

In a six-month single-blind research experiment with 100 volunteers, 50 of whom received lotion containing rosemary oil and the other 50 received lotion containing minoxidil 2 percent, both groups saw a considerable rise in the number of hairs on their bodies. Itching on the scalp was less common in those who used rosemary oil.

Carnosic acid contributes to scalp health and it is present in rosemary. Antimicrobial and anti-inflammatory properties are present in rosemary oil, which can help to fight dandruff, because of this hair becomes thin and also it is a common cause of inflammation.

Itchy scalp becomes less after using this oil, it can strengthen and hydrate your hair. According to research, rosemary oil was shown to be just as effective as 2 percent minoxidil after six months in California. The study also discovered that participants who used the oil had a lower risk of having itchy scalps.

 4)      Lemongrass Oil

Citral, minerals, and vitamins are present in the lemongrass plant, and lemongrass oil is extracted from the leaves of the lemongrass plant. Lemongrass oil is great for hair health. Lemongrass can go in there and clean your flaky scalp, so that your scalp health can improve and also helps in natural healthy hair growth.

Antibacterial, antioxidant, antifungal, and anti-inflammatory properties are present in lemongrass oil, it can minimize the potential for hair loss while it does not itself cause it to grow. As it is antifungal it can significantly reduce dandruff when applied to the scalp.

5)      Pumpkin Seed Oil

It is a nut-free oil as it is made by either cold or hot-pressing pumpkin seed oil. Scientifically proven that pumpkin seed oil is proven to stop hair loss. Because of its abundance in vitamin E and unsaturated fatty acids like oleic and linoleic, this oil may promote hair development by lowering scalp irritation.

This oil is good for hair regrowth, 400 mg of pumpkin seed oil given internally every day for 24 weeks resulted in 30% greater hair growth than a placebo, according to a thorough randomized controlled trial involving 76 men with androgenetic alopecia, or male pattern baldness. Propecia is similar to pumpkin seed oil.

This oil contains similar to cholesterol in humans which is phytosterol or plant-derived fatty substances, which may inhibit the effect of an enzyme called 5alpha reductase, which is associated with hormonal hair loss. One form of testosterone can convert into a more potent form of testosterone as 5alpha reduces it, which means it is more highly associated with male pattern hair thinning. By lowering scalp irritation, which may lead to hair shedding, pumpkin seed oil's anti-inflammatory impact may also encourage hair growth.