Onion Juice on Hair: Benefits and How to Use

While the onion is commonly recognised for its strong odour, it may be time for it to be renowned for something else: its assistance in hair care. Researchers discovered that onions’ anti-inflammatory and antibacterial characteristics may help you grow your hair or improve its look.

Skeptical? Do you want to learn more? Continue reading for more information about onions’ hair-enhancing effects.

To promote hair growth

An onion’s capacity to stimulate hair growth was investigated in a 2018 research published in the Journal of Drug Delivery and Therapeutics. The onion shampoo was developed by the study’s researchers by:

  • 100 grammes (3.5 ounces) of fresh onion bulbs
  • cut into small pieces
  • using a food processor to chop the onion into even smaller bits
  • filtering the onion extract by pouring the chopped onion through a muslin fabric

They then mixed the onion extract (typically 1 to 3 millilitres) with a natural shampoo that included coconut, castor, and eucalyptus oils as well as cleansers. They discovered that when applied to the skin for 5 minutes (far longer than your typical shampoo), the combination did not irritate it. They discovered that the onion shampoo:

  • provided more nutrients and better nourishment to hair follicles
  • moisturized dry hair and scalp
  • promoted hair growth

You may use the same method to add onion extract into your own shampoo

Even if you aren’t ready to start creating your own shampoo, you may utilise the same method the researchers used to create an onion extract to add to your own at home.

Don’t be concerned; your hair will not smell like onions.

And there’s good news if you’re worried your hair will always smell like onions. To mask the odour, the researchers employed perfumes and a little bit of lemon juice. They didn’t notice any “characteristic smell” of onions when they used the shampoo.

To reverse hair greying

There is no peer-reviewed evidence that onions can reverse the greying process. However, many home remedies claim that onion extract can help reduce grey hairs. The idea behind these home remedies is that onions contain catalase, an antioxidant compound that aids in the reduction of hydrogen peroxide at the hair roots. This is thought to prevent greying of the hair.

If you want to give this home remedy a shot, here’s a recipe you can use three to four times per week:

  • 3 teaspoon onion juice and 2 teaspoon lemon juice
  • Apply the mixture as evenly as possible to the hair and scalp.
  • Leave for 30 minutes on hair and scalp.
  • To remove any onion odours, rinse and use a gentle shampoo.

Alternatively, soak a cotton pad in plain onion juice and apply it to your scalp, massaging it in as you go. After 15 minutes, rinse with a gentle shampoo.

To revitalise and moisturise dry, brittle hair

Onions contain a variety of compounds that may benefit dry, damaged hair. Flavonoids such as kampeferol and quercetin are examples. These have anti-inflammatory, antioxidant, and vasodilatory (blood vessel widening) properties that aid in blood flow to the scalp.

While there aren’t many commercial onion-containing hair care products on the market, there are a few. These ready-made options can assist you in easily incorporating the benefits of onions into your hair.

To make an online purchase, follow the links provided below:

To calm a dry, itchy scalp

The anti-inflammatory properties of onions may help relieve itchy scalp. To soothe your scalp, combine onion extract with other natural ingredients.

Consider the following combinations:

  • 2 tablespoons onion juice and 1/2 tablespoon raw honey
  • 1 tablespoon olive oil and 3 tablespoons onion juice
  • 3 tablespoons onion juice, 5 tablespoons coconut oil, and 1 tablespoon lime juice

Apply one of these combinations to your scalp and then rinse with a mild shampoo after 20 to 30 minutes.

Alopecia treatment

Alopecia areata is a hair condition that causes patchy hair loss. A study of 38 people in 2014 looked at the efficacy of using onion juice to treat alopecia. The researchers had one group apply onion juice to their scalp twice a day, while the other used tap water.

After 6 weeks, 86.9 per cent of those who used onion juice reported increased hair growth. Only 13% of the tap water group reported hair growth. The researchers concluded that onion juice can be used to treat alopecia.

To get rid of dandruff

Because onion juice has antimicrobial and antifungal properties, some natural health experts recommend it as an infection treatment. Many people get dandruff from a fungus called Malassezia furfur, so onion’s antifungal properties could be useful as a dandruff fighter.

However, because there hasn’t been much research on onion as a dandruff fighter, it’s not a first-line treatment for moderate to severe dandruff. If you only have a few flakes, you could try applying onion juice to your scalp.

You can also try different dandruff-fighting combinations. Here are some examples:

  • 2 tbsp. fenugreek seeds ground and soaked in 2 tbsp. onion juice and water to make a paste then applied to the scalp for 30 minutes before rinsing.
  • 2 tablespoons aloe vera gel and 3 tablespoons onion juice, then apply to scalp for 10 minutes before rinsing.

If your hair smells bad after using an onion juice preparation, use a mild shampoo and apple cider vinegar rinse. To accomplish this, first:

  • 1 cup water + 2 tablespoons apple cider vinegar
  • When you’re done showering, rinse the solution through your hair.

Side effects of using onions on your skin

If you are allergic to onions, you should avoid using them on your skin. Avoiding further allergic reactions may help you avoid them.

Additionally, if you have sensitive skin, onion juice may irritate it. The trick is to not leave it on for too long. This means that if you have sensitive skin or a sensitive scalp, you should avoid wearing it overnight. If onion extract irritates you, as with any other product or treatment, discontinue use.

Important takeaways

Onions can help your hair in a variety of ways. These include dandruff reduction and possibly promoting hair growth. When you’re feeling crafty or adventurous, try some of the DIY onion hair care recipes in this article to see if you can reap the benefits of onion’s hair-boosting properties.

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