Unknown Facts about Onion Juice for hair growth

Busting onion oil for hair growth myths with top Trichologist

Onion is one of the most essential and tastiest foods out there. It is super necessary in every dish one eats, but recently it has come to hold a special feature. It has come to be believed that Onion Juice grows hair. What is onion juice and how does it help to grow hair?

Fact Check: Onion Oil and Hair Growth

The claim that onion oil or onion juice can promote hair growth is a topic that has gained some attention in recent years so let’s check what is truth about onion oil and hair growth.

Reasons why it is believed it grows hair!

Onions are rich in ‘Sulphur’, and sulphur helps in production of ‘Keratin’ the protein which is necessary for Hair Growth. Different type of Sulphur is also present in our shampoos. So Onion juice can also be efficient in removing dandruff from hair, but it should be used in small quantities, because higher sulphur can cause irritation to the eyes and also lead to red skin and some other severe skin complications.

Dandruff Removal

It is suggested that onion juice can help in removing dandruff from the hair due to its sulfur content. However, it’s important to use it in moderation because excessive sulfur can lead to skin irritation and other skin problems. People also use onion for beard growth and get beneficial results.

It’s important to emphasize that the effectiveness of onion juice for hair growth may vary from person to person, and more comprehensive research is needed to establish its benefits definitively.

Moreover, some individuals may experience skin irritation or allergic reactions when applying onion juice to their scalp, so it’s advisable to do a patch test before using it extensively.

Onion and oil for Hair Growth: What Does the Trichologist Say?

Using onion and oil for hair growth is a popular home remedy that has garnered attention for its potential benefits. Trichologists, who specialize in the science of hair and scalp health, have weighed in on this topic.

Trichologists acknowledge the potential benefits of onion and oil mixtures for hair growth, but they also emphasize the importance of individual variation. Hair growth is influenced by genetics, hormones, diet, and overall health. While this home remedy might work for some people, it may not be equally effective for everyone. Trichologists recommend considering other factors like a balanced diet, proper hair care routines, and medical conditions that could affect hair health.

However, it’s essential to keep a few key points in mind:

Patch Test: Before applying onion juice or oil to your scalp, perform a patch test to ensure you aren’t allergic or sensitive to these substances.

Consistency is Key: Hair growth treatments often require consistent use over an extended period to see results. Don’t be discouraged if you don’t notice immediate changes.

Balanced Diet: Your diet also plays a crucial role in hair health. Ensure you’re getting a balanced intake of nutrients to support your hair growth journey.

Consulting a trichologist or a healthcare professional for personalized advice on hair care is recommended for those seeking to improve their hair growth and overall hair health.

Onion Oil vs. Hair Loss: Can It Stop Hair Loss?

Onion oil has gained popularity as a potential remedy for hair loss due to its natural properties and anecdotal success stories. While it’s not a guaranteed solution, there is some evidence to suggest that onion oil may help combat hair loss and promote hair growth.

The Science Behind Onion Oil:

Onion oil is rich in sulfur, which is known to boost collagen production, an essential protein for healthy hair growth. Additionally, it contains antioxidants that help protect hair follicles from damage caused by free radicals. These properties make onion oil a promising candidate for addressing hair loss.

How Onion Oil May Help Prevent Hair Loss:

Improved Blood Circulation

Onion oil can stimulate blood flow to the scalp, ensuring that hair follicles receive adequate nutrients and oxygen. This enhanced circulation can help revitalize dormant follicles and promote hair regrowth.

DHT Inhibition

Dihydrotestosterone (DHT) is a hormone associated with hair loss. Some studies suggest that onion oil may inhibit the production of DHT, reducing its negative impact on hair follicles.

Stronger Hair

The sulfur in onion oil can strengthen the hair shaft, making it less prone to breakage and damage. This, in turn, may reduce hair loss due to mechanical factors.

Scalp Health

Onion oil possesses antimicrobial properties that can help maintain a healthy scalp environment. A clean and nourished scalp is crucial for optimal hair growth.

How to Use Onion Oil

To reap the potential benefits of onion oil for hair loss prevention, you can apply it topically.

– Mix onion oil with a carrier oil like coconut or jojoba oil and massage it into your scalp. 

– Leave it on for at least 30 minutes before washing it out with a mild shampoo. 

– You can use this treatment 2-3 times a week for best results.

Fact or Fad: Can Onion Juice Regrow Hair?

Let us know first the technique to extract onion juice.

First to extract onion juice you have to:

1. Cut onions into small cub like pieces.
2. Put it in a blender till it looks like a paste.
3. Drain the juice out and remove the pulp.
4. With the help of a brush apply it gently on your scalp.

These 4 steps will extract you onion juice, but why is it believed to hold the special quality of growing hair?

But is it true that Hair Grows with Onion Juice?

Yes, it does in certain cases. It hasn’t been researched thoroughly, so there is basically less information but there have been results in researches that have been conducted. But as a specific research showed which had 38 patients who had Alopecia Areata (an immune system disorder which leads to Hair loss) and their usage of onion juice. The results showed that above 80 percent people received results just above one month and about 75% saw results just in 2 weeks

Problems of these results!

The problem with this result is that it is done on a small sample size of just 38 patients and their condition is Alopecia Areata. But most of hair fall patients fall under the category of Androgenetic Alopecia (where due to genetic causes our hair is lost). This raises doubt about how effective it will be against Androgenetic Alopecia. But there will be research in the near future which will show how effective it is on a grander scale and also in other types of Hair loss.

Alopecia and Onion Oil - A take by Hair Growth Surgeon

Understanding Alopecia

Alopecia is a multifactorial condition, encompassing various types, from androgenic alopecia to alopecia areata, each with its unique triggers and manifestations. However, the underlying mechanism often involves inflammation and the weakening of hair follicles, leading to hair loss.

The Onion Oil Phenomenon

Onion Oil, derived from the humble onion, has emerged as a popular alternative remedy for hair loss. Rich in sulfur, antioxidants, and various nutrients, it is believed to possess properties that can counteract the factors contributing to alopecia.

Realistic Expectations

While Onion Oil shows promise, it’s crucial to manage expectations. Not all cases of alopecia respond the same way, and individual results may vary. Onion Oil for alopecia can be a complementary approach to existing treatments, but it’s not a guaranteed cure-all.

Separating Myth from Reality of Alopecia

Myth 1: Alopecia is rare.

Reality: Alopecia affects millions worldwide. It’s more common than many believe, with various types, including alopecia areata, androgenetic alopecia, and telogen effluvium, affecting people of all ages and genders.

Myth 2: Only older people experience hair loss.

Reality: Hair loss can strike at any age. While androgenetic alopecia is more common in older individuals, alopecia areata can affect children and young adults. The causes and treatments may vary depending on age.

Myth 3: Stress alone causes alopecia.

Reality: Stress can exacerbate hair loss, but it’s rarely the sole cause. Genetics, hormonal changes, autoimmune factors, and underlying medical conditions play significant roles. Stress management can be part of treatment, though.

Myth 4: Nothing can be done about alopecia.

Reality: Various treatments are available, from topical medications and oral drugs to hair transplant surgery. Consultation with a dermatologist or trichologist can help determine the best approach based on the type and severity of alopecia.

Myth 5: Wearing a hat or frequent shampooing causes alopecia.

Reality: These actions do not typically lead to alopecia. Hair loss is mostly influenced by internal factors like genetics and hormonal changes. However, excessive hairstyling, tight hairstyles, or harsh chemical treatments can contribute to hair damage.

Myth 6: All alopecia cases are the same.

Reality: There are multiple types of alopecia, each with distinct causes and patterns of hair loss. Understanding the specific type is crucial for proper diagnosis and treatment.

Myth 7: Once hair is lost, it can never regrow.

Reality: While not all cases of alopecia can be cured, many individuals experience regrowth with appropriate treatment. The effectiveness varies among types and individuals, so early intervention is vital.

Understanding Pattern Baldness and onion hair oil

Pattern baldness, also known as androgenetic alopecia, is a common form of hair loss that affects both men and women. It is characterized by a progressive thinning of hair, typically in a specific pattern on the scalp. While genetics plays a significant role in its development, hormonal and environmental factors can also contribute to its onset.

In men, pattern baldness often starts with a receding hairline, followed by thinning at the crown. Women, on the other hand, tend to experience diffuse thinning throughout the scalp. This condition can be distressing and impact one’s self-esteem.

Many individuals seek remedies to combat pattern baldness, and one popular option is onion hair oil for hair growth. Onion oil is believed to promote hair growth and reduce hair fall due to its rich sulfur content. Sulfur is essential for the production of collagen, a protein that plays a crucial role in hair growth. Additionally, onion oil may have anti-inflammatory and antibacterial properties, which can help maintain a healthy scalp.


In Sum it Up, while there is some evidence to suggest that onion oil may help with hair growth, more research is needed to confirm its effectiveness. Onion oil contains sulfur and phenolic compounds that may stimulate hair regrowth and improve hair quality. However, it is not a miracle cure for hair loss or other hair problems. It’s important to consult a dermatologist or a hair specialist before trying any new hair treatment. They can help you determine the underlying cause of your hair issues and recommend the best course of action. Remember, healthy hair starts with a healthy lifestyle and good hair care habits. Eat a balanced diet, exercise regularly, avoid harsh chemicals and heat styling, and use gentle hair products. With proper care and attention, you can achieve strong, shiny, and beautiful hair.


Onion is believed to promote hair growth due to its high sulfur content. Sulfur is essential for the production of keratin, a protein that makes up hair. Onion juice is thought to stimulate hair follicles and improve blood circulation to the scalp, which may encourage hair growth.

Onion oil, when applied to the scalp, can provide several benefits such as strengthening hair, reducing hair fall, improving hair texture, and promoting healthy hair growth. It can also help in preventing premature graying of hair.

Onion oil is thought to be effective for hair loss because it contains sulfur compounds that may help nourish hair follicles, reduce inflammation on the scalp, and strengthen the hair strands. This can potentially minimize hair loss and promote regrowth.

Onion seed oil, also known as kalonji oil or black seed oil, contains antioxidants, vitamins, and minerals that can nourish the scalp, strengthen hair, and promote hair growth. It may also help in reducing dandruff and preventing hair thinning.

Red onion oil is made from red onions and contains similar sulfur compounds as regular onion oil. It is believed to be beneficial for hair loss and promoting hair growth, just like regular onion oil.

Organic onion hair oil is made from organically grown onions, ensuring that no synthetic chemicals or pesticides are used in its production. White onion oil is made from white onions. Both organic and white onion oils can potentially increase hair growth due to their sulfur content, which nourishes the hair follicles and improves scalp health.

To make onion hair oil at home, you can follow these general steps:

Finely chop or blend onions.
– Heat a carrier oil (such as coconut oil or olive oil) and add the chopped onions.
– Simmer the mixture on low heat until the onions turn brown.
– Strain the oil to remove onion particles.
– Allow it to cool and store it in a clean, airtight container.

The types of onion oil mainly depend on the type of onion used. Common types include regular onion oil, red onion oil, white onion oil, and organic onion oil.

Yes, onion oil may help with dandruff. Its antibacterial and antifungal properties can help control the microbial growth on the scalp that can lead to dandruff. Additionally, the sulfur in onion oil may promote a healthier scalp, reducing the likelihood of dandruff formation.

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The above information is written by the experienced surgeon from HairFree HairGrow Kolkata Clinic Dr. Pratibha Pradhan.

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