Onion and onion juice

How to Use Onion Juice for Hair Thickness & Regrowth?

Onion Juice for Hair 

While onions are typically recognised for their pungent fragrance, it may be time for them to also be recognised for their assistance in hair maintenance. 

Researchers have discovered that onions' anti-inflammatory and antibacterial qualities may promote hair growth or improve the appearance of healthy hair. 

Is onion juice good for hair? Wish to learn more? For more information on how onions can improve hair, continue reading. 

Hair growth oil

Benefits of onion juice for hair

To promote the growth of hair 

The ability of the onion to promote hair development was examined in a 2018 study written up in the Journal of Drug Delivery and Therapeutics. 

Researchers for the study made an onion shampoo by: 

  • obtaining 100 grams (approximately 3.5 ounces) of fresh onion bulbs, picking them up, chopping them into tiny bits, processing the onion in a food processor to make even smaller pieces, and then filtering the onion extract by pouring the onion over a muslin cloth. 
  • Then, they included the onion extract (about 1 to 3 millilitres) in a natural shampoo that also contained cleansers and oils of coconut, castor, and eucalyptus. 

They discovered that the mixture didn't irritate the skin when applied to the skin for 5 minutes (far longer than you would typically shampoo). The onion shampoo was also discovered to: 

  • supplied hair follicles with more nutrition and greater nourishment. 
  • Dry hair and scalp were hydrated to encourage hair development. 

You can make your shampoo with onion extract by following the same procedure. 

You may utilise the same method the researchers used to create an onion extract to add to your shampoo at home even if you're not yet ready to start creating shampoos. 

Hair nourishing Shampoo

To stop hair from greying 

The idea that eating onions can stop your hair from greying has never been supported by peer-reviewed research. Many home treatments, however, claim that onion extract can lessen grey hairs. 

These home cures are based on the theory that onions contain the antioxidant catalase, which aids in lowering hydrogen peroxide in the hair roots. This is said to prevent greying of the hair. 

To hydrate and revive brittle, dry hair 

Many of the components found in onions have the potential to improve dry, damaged hair. Flavonoids like kaempferol and quercetin are two examples. These aid in promoting blood flow to the scalp because they contain anti-inflammatory, antioxidant, and vasodilatory (blood vessel widening) qualities. 


Although there aren't many commercial hair care treatments that contain onions, you can still discover a handful. You may quickly and easily give your hair the advantages of onions by using these ready-made solutions. 

To relieve an itchy, dry scalp 

The anti-inflammatory qualities of onions may aid to relieve the itchy scalp. To soothe your scalp, you can also mix onion extract with other organic products. 


You can try the following combinations: 

  • 1/2 tbsp. raw honey and 2 tablespoons of onion juice 
  • Olive oil and three tablespoons of onion juice 
  • 5 tbsp. coconut oil, 3 tbsp. lime juice, and 3 tbsp. onion juice 
  • One of these mixtures can be applied to your scalp, and after 20 to 30 minutes, you can remove it with a light shampoo. 

Alopecia treatment 

Alopecia areata is a condition that results in patchy hair loss. 

To eliminate dandruff 

Some natural health professionals recommend onion juice as an illness cure since it possesses antibacterial and antifungal characteristics. 

The fungus Malassezia furfur is the cause of dandruff in many people, hence the antifungal qualities of onions could be helpful in the fight against dandruff. 

Though it's not a first-line treatment for moderate to severe dandruff because there aren't many studies on onions as a dandruff fighter. However, you might attempt putting onion juice on your scalp if you occasionally experience flakes. 

Additionally, you can experiment with various dandruff-fighting combos. Examples comprise: 

  • Make a paste from 2 tablespoons of ground fenugreek seeds, 2 tablespoons of water, and 2 tablespoons of onion juice, apply it to your scalp for 30 minutes, then rinse it off. 
  • Applying 2 tablespoons of aloe vera gel and 3 tablespoons of onion juice to your scalp and let it sit for 10 minutes before rinsing it off 
  • You can use a light shampoo and apple cider vinegar rinse if your hair smells awful after using an onion juice preparation. 

How to do it:

  • To 1 cup of water, add 2 tablespoons of apple cider vinegar. 
  • After you get out of the shower, run the solution through your hair. 

How to make and use onion juice for hair

Here is a mixture that you can use three to four times each week if you want to try this home remedy: 

  • Mix 2 teaspoons of lemon juice with 3 teaspoons of onion juice. 
  • 30 minutes of application to the scalp and hair. 
  • Rinse and use a gentle shampoo to get rid of any onion odours. 
  • As an alternative, you might soak a cotton pad in regular onion juice and apply it to your scalp while massaging. After 15 minutes, rinse with a gentle shampoo. 

Negative effects of using onion on the skin

If you already have an allergy to eating onions, you shouldn't use onions on your skin. You might be able to prevent further allergic reactions by steering clear. 

Additionally, onion juice will probably irritate delicate skin. It's important to not leave it on for too long. If you do have sensitive skin or a sensitive scalp, keeping it on overnight is not advised. If onion extract upsets you, cease taking it, as you should with any product or treatment. 

Take Away 

There are numerous methods to use onions to enhance your hair. These consist of dandruff reduction and perhaps hair growth promotion. Try any of the homemade onion hair care recipes in this article when you're feeling creative or adventurous to see whether you can benefit from the onion's hair-enhancing properties.