Onion Juice For Hair : Benefits & How To Use It

This article is reviewed by an expert

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People often look for effective remedies when it comes to achieving healthy and lustrous hair. While the market is flooded with various hair care products, one natural solution has gained considerable attention – onion juice. Despite its pungent aroma and common use in the culinary world, onion juice holds surprising benefits for hair health.

In this comprehensive article, we will explore the numerous benefits of onion juice for hair growth and provide detailed instructions on making and using it effectively. Each benefit will be discussed, and further categorization into primary and secondary advantages will be provided. So, let’s delve into the world of onion juice and unlock its incredible potential for hair care.

Benefits of Onion Juice for Hair  

1. Promotes Hair Growth 

Onion juice contains high amounts of sulfur, a mineral known to nourish hair follicles. This nourishment promotes hair growth and helps prevent hair loss [1] [2]

2. Strengthens Hair 

The sulfur content in onion juice strengthens the hair strands, making them more resilient and reducing breakage. This leads to thicker, stronger and denser hair. [3]

3. Fights Hair Fall 

Onion juice nourishes the hair follicles, reducing hair fall by promoting stronger roots. Additionally, it revitalizes the scalp, unclogs hair follicles, and improves overall scalp health. This reduction in scalp issues further contributes to the prevention of hair fall. [3]

4. Stimulates Hair Regrowth 

Onion juice is believed to stimulate dormant hair follicles, particularly in areas of thinning or baldness. This stimulation promotes hair regrowth and helps fill in sparse areas. [1] [2]

5. Conditions and Softens Hair 

Applying onion juice to hair benefits the hair strands by smoothening and softening them. Acting as a natural conditioner, onion juice improves the overall texture and softness of the hair. It adds moisture and enhances the hair’s appearance and manageability [3]

6. Reduces Scalp Inflammation 

Onion juice possesses anti-inflammatory properties that can soothe an inflamed scalp, reducing redness and irritation. Therefore, individuals dealing with scalp conditions like scalp psoriasis or eczema may find relief from symptoms thanks to the calming effects of onion juice on scalp inflammation. [2]

7. Improves Blood Circulation to the Scalp 

Applying onion juice to the scalp improves blood circulation, facilitating a steady flow of oxygen and nutrients to the hair follicles. When the follicles get a steady supply of nutrients, your hair health improves remarkably. [2]

8. Increases Hair Volume

The sulfur in onion juice can activate the hair follicles and lead to the growth of new hairs. The sulfur also adds thickness to the existing hair strands. So, thickened, voluminous hair is one of the prominent results of onion juice on hair.

9. Eliminates Dandruff

One of the benefits of applying onion juice to hair is that it can help you get rid of dandruff. Onion juice comes with antifungal and antimicrobial properties, which effectively treat the dandruff issue. [2] [3]

10. Repairs Damaged Hair

The minerals in onion juice can nourish your hair, repair the damage caused by pollution and harmful chemicals, and give you healthy hair. [3]

How to Make Onion Juice?

To experience the juicing onion benefits for hair, you must make the onion juice properly. You can make onion juice in two ways:

Method 1

  • Finely grate the onion using a kitchen grater.
  • Put the grated lump in a clean cheesecloth and place a bowl underneath.
  • Squeeze out the juice by pressing the cheesecloth as hard as you can!

Method 2

  • Chop the onions into small bits.
  • Put the small pieces of onions in a blender and run the blender. You will get a thick onion paste at the end of this step.
  • Now, put the thick onion paste in a mesh strainer and place the strainer above a bowl.
  • Using a spoon, press the juice out of the thick onion paste. Instead of the mesh strainer, you may also use a cheesecloth for pressing out the juice.

How to Use Onion Juice for Hair Fall & Haircare 

To make the most of onion juice for hair, follow these step-by-step instructions:

  1. Prepare the onion juice by blending or juicing a fresh onion.
  2. Apply the juice directly to the scalp using a cotton ball or by gently massaging it with your fingertips.
  3. Ensure thorough scalp coverage, paying particular attention to areas with hair loss or thinning.
  4. Massage the scalp gently for a few minutes to promote better absorption.
  5. Leave the onion juice on the scalp for 30 minutes to an hour, allowing the nutrients to penetrate the hair follicles. 
  6. If the pungent odor of onion juice is bothersome, you can cover your hair with a shower cap or towel during the treatment. 
  7. After the recommended duration, thoroughly rinse your hair with a mild shampoo to remove the juice and odor. 
  8. Repeat this process 1-2 times weekly for best results and continued hair care.

Side Effects of Onion Juice

While onion juice is generally safe, performing a patch test before applying it to the entire scalp is essential. This is because some individuals with sensitive scalp may experience scalp irritation, redness, itchiness, or an allergic outbreak. [3]


1. Should I use store-bought onion juice or homemade onion juice?

It is always best to use homemade onion juice for hair care as it is pure and free from preservatives. In contrast, the store-bought ones may contain preservatives and may be poor in quality compared to the homemade versions.

2. What other onion-based products can I use on my hair besides onion juice?

Apart from onion juice, you may use onion oil and onion hair mask on your hair.

3. Is it OK to leave your juice on my hair and scalp overnight?

Though onion juice is a safe hair care ingredient, it should not be left on your scalp and here overnight as it may cause some sort of irritation on the scalp due to its high sulfur content. [3]

4. Can I also drink onion juice?

Yes, you may drink onion juice. Onion juice has many health benefits. According to research, it was found that drinking onion juice may prevent osteoporosis in women.

5. What precautions should I take while using onion juice on my hair?

You may experience scalp irritation when using onion juice if you have a sensitive scalp. So, do a patch test before using onion juice on the scalp and hair. Also, talk to your hair care expert before using the onion juice. Another helpful tip is that you must wear gloves when applying onion juice to your scalp and hair because, in case you touch your eyes mistakenly, you may experience a severe burning sensation in the eyes.


Onion juice has emerged as a natural remedy for promoting hair growth and improving the overall health of your hair. Its sulfur content and ability to improve blood circulation and combat scalp issues make it a powerful ally in the quest for luscious locks. When using onion juice for hair, it’s crucial to follow proper application techniques and be consistent in your hair care routine. 

In this article, we have aptly discussed the benefits of onion juice for hair and the methods of applying onion juice to hair. So, make this wondrous kitchen ingredient a part of your hair care regimen and get healthy hair in just no time!


This article is written from a health and lifestyle perspective. It is for general information and is not meant to substitute any medical advice. Please consult your doctor for appropriate medical consultation.


  1. Onion juice (Allium cepa L.), a new topical treatment for alopecia areata
  2. Onion Juice: An Effective Home Remedy for Combating Alopecia
  3. A Review: onion (Allium cepa)

Dr. Jyoti Lakhani

Dr. Jyoti has 15 years of experience in Clinical Practice, Research & Education in the field of Ayurveda with competency in acute & chronic conditions like Arthritis, Spondylitis, Osteoporosis, Sciatica etc. She has also expertise in treating Female Infertility disorders, other Gynecological Problems & General disorders.


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