Onion Juice For Hair : Benefits & How To Use It

This article is reviewed by an expert

Onion Juice For Hair

When it comes to achieving healthy and lustrous hair, people are often on the lookout for effective remedies. While the market is flooded with various hair care products, there’s one natural solution that 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 how to use 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] [2] [3]

  1. Promotes Hair Growth 

Primary Benefit: Onion juice contains high amounts of sulfur, a mineral known to nourish hair follicles. This nourishment promotes hair growth and helps prevent hair loss. 

Secondary Benefit: Additionally, sulfur improves blood circulation to the scalp, ensuring essential nutrients reach the hair follicles and supporting healthy hair growth.

  1. Strengthens Hair 

Primary Benefit: The sulfur content in onion juice strengthens the hair strands, making them more resilient and reducing breakage. This leads to thicker, stronger hair and helps prevent hair thinning. 

Secondary Benefit: Moreover, onion juice’s antimicrobial properties combat scalp infections and dandruff, creating a healthier scalp environment and further promoting stronger hair.

  1. Fights Hair Fall 

Primary Benefit: Onion juice nourishes the hair follicles, reducing hair fall by preventing hair breakage and promoting stronger roots. 

Secondary Benefit: 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.

  1. Stimulates Hair Regrowth 

Primary Benefit: 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. 

Secondary Benefit: The nourishing properties of onion juice contribute to scalp health and strengthen the hair shaft, creating an optimal environment for new hair growth.

Benefits of Onion Juice

  1. Conditions and Softens Hair 

Primary Benefit: 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. 

Secondary Benefit: For individuals with dry and brittle hair, onion juice helps restore moisture, leaving the hair smooth, shiny, and more manageable.

  1. Reduces Scalp Inflammation 

Primary Benefit: Onion juice possesses anti-inflammatory properties that can soothe an inflamed scalp, reducing redness and irritation. 

Secondary Benefit: 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.

  1. Improves Blood Circulation to the Scalp 

Primary Benefit: Applying onion juice to the scalp improves blood circulation, facilitating a steady flow of oxygen and nutrients to the hair follicles. 

Secondary Benefit: Enhanced blood circulation promotes healthier hair growth, prevents nutrient deficiencies in the scalp, and supports optimal scalp health.

How to Use Onion Juice for Hair

To make the most of onion juice for hair, follow these step-by-step instructions [3]:

  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 coverage of the scalp, 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 a minimum of 30 minutes to an hour, allowing the nutrients to penetrate the hair follicles. 
  6. If the pungent odour 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 odour. 
  8. Repeat this process 1-2 times a week for best results and continued hair care.

While onion juice is generally safe to use, it’s essential to perform a patch test before applying it to the entire scalp. This test helps identify any potential allergies or sensitivities. Additionally, if you experience any adverse reactions or irritation, discontinue use and consult a dermatologist.


Onion juice has emerged as a natural remedy for promoting hair growth and improving overall hair health. Its sulfur content, coupled with its ability to improve blood circulation and combat scalp issues, makes it a powerful ally in the quest for luscious locks. From promoting hair growth and reducing hair fall to strengthening the hair shaft and conditioning the strands, onion juice offers a range of primary and secondary benefits.

When using onion juice for hair, it’s crucial to follow proper application techniques and be consistent in your hair care routine. While results may vary depending on individual factors, many people have reported positive outcomes from incorporating onion juice into their hair care regimen.

However, it’s important to note that onion juice is not a magic cure-all, and it may not work for everyone. If you have underlying medical conditions or concerns about your hair health, it’s always advisable to consult with a healthcare professional or dermatologist for personalized advice.

So, if you’re seeking a natural and affordable way to improve the condition of your hair, consider giving onion juice a try. Embrace the potential benefits and take strides towards healthier, more vibrant hair.

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


  1. https://pubmed.ncbi.nlm.nih.gov/12126069/
  2. https://www.researchgate.net/publication/273758703_Onion_Juice_An_Effective_Home_Remedy_for_Combating_Alopecia
  3. https://www.healthline.com/health/onion-juice-on-hair