Onion Juice to Grow Hair: 8 Amazing Benefits

Many people have the dream of having a full head of hair. And while it might not always be possible, there are certain natural steps you can take to ensure that.

One of these most effective natural remedies is onion juice. That’s right, onion juice is a very beneficial natural remedy that works to promote healthy and faster hair growth.

But is it worth trying? Here we’ll take a look at the benefits of onion juice for hair growth, whether or not it really works, and how to use it on your hair.

Using Onion Juice to Grow Hair

Onion juice has been used for centuries as a home remedy to treat hair loss and promote hair growth. In fact, according to one study, applying onion juice to your hair can help you get longer and fuller hair within a few weeks.

This is because onions are rich in sulfur, which increases blood circulation to the hair follicles and promotes hair growth. Onion juice can also help fight infections of the scalp, treat bald spots, receding hairline, and alopecia areata.

The only problem with onion juice is that it has an unpleasant odor. This makes it difficult to apply and use it on your hair. But there are ways to overcome this problem, which we’ll talk about below.

Benefits of Onion Juice for Hair

1. It Improves Scalp Health

Massaging your scalp with onion juice can help improve blood circulation to your hair follicles, which in turn improves scalp health. Onion juice also helps in keeping the scalp healthy by preventing the growth of bacteria, which may cause various scalp conditions.

2. It Prevents Premature Graying of Hair

Onion juice contains catalase, an enzyme that helps to break down hydrogen peroxide into water and oxygen. This makes it beneficial for people who suffer from premature greying of hair that is caused by the overproduction of hydrogen peroxide in their bodies.

3. It Promotes Healthy Hair Growth

Onion juice is rich in sulfur, which helps in boosting collagen production. Collagen, in turn, improves blood circulation to the scalp and reduces inflammation, thereby promoting hair growth. It also boosts keratin production, making your hair strong, thick, and healthy.

4. It Protects Hair From Pollution and Sun Damage

Onion juice contains quercetin, which is an antioxidant that protects the hair from pollution and ultraviolet radiation from sun rays. Regular application of onion juice can also help in repairing damaged hair and split ends.

5. It Reduces Oil Production

Using onions regularly will also reduce excessive oil production by your scalp as it helps balance your scalp’s pH levels. Excessive oil production by the scalp can block pores and hinder proper blood circulation to hair follicles, thereby making it difficult for new hair to grow.

6. It Helps Treat Scalp Infections

Onion juice is a popular natural remedy for treating various scalp infections, such as ringworm and dandruff. It contains antibacterial and antifungal properties that help fight against the fungus and bacteria that cause these scalp infections.

7. It Reduces Inflammation and Redness

Onions have anti-inflammatory properties that reduce inflammation and redness caused by scalp infections, like dandruff or ringworm. Onion juice can also help relieve itching and irritation associated with these scalp infections.

8. It Helps Treat Dry and Frizzy Hair

If you have dry, dull, and frizzy hair, all you have to do is use onion juice for about a month and say goodbye to your problem. It can also help repair damage from heat styling tools, which could be the reason for your dry, frizzy hair.

SEE: How to Stop Hair From Breaking- Discover the Prevention and Home Remedies That Work

How to Use Onion Juice for Hair Growth

To use onion juice for hair growth, you can either apply it directly to your scalp or mix it with other ingredients. Here are some ways to use onion juice to grow your hair faster:

Apply onion juice directly to your hair

Apply onion juice directly to your hair, massage for a few minutes, and leave it on for about 30 minutes. Wash the juice off thoroughly with shampoo, then condition your hair. Use this remedy two or three times a week for several weeks to notice positive results.

Onion juice + aloe vera gel

Onion juice and pure aloe vera gel may be all you need to restore moisture and promote hair growth. Mix one tablespoon of onion juice with two tablespoons of aloe vera gel in a small bowl or container. Massage the mixture into your scalp before going to bed each night, then wash it out in the morning.

Onion juice + olive oil

Another way to use onion juice to grow your hair is by massaging your scalp regularly with a mixture of onion juice and olive oil for a few minutes. Leave it on for 20 minutes, and then rinse your hair thoroughly with mild shampoo and warm water.

Onion juice + honey

You can also make a mixture of one teaspoon each of onion juice and honey, then apply it to your hair. Leave it on overnight, then wash your hair with a mild shampoo in the morning.

Onion juice + ginger juice

Extract the juice from fresh ginger by grating it and then straining it. Add two tablespoons of onion juice, then apply the mixture directly to your scalp. Leave it on for 20-30 minutes before washing it off with a gentle shampoo and lukewarm water.

Onion juice + coconut oil

Pour two tablespoons of onion juice, 2 tablespoons of coconut oil, and a few drops of your favorite essential oil into a bowl. Next, stir all the ingredients together, then apply the mixture directly to your hair and scalp with a spray bottle.

Massage it in for at least five minutes so that it reaches every strand of your hair. Leave it on for about 15 minutes before washing it off with lukewarm water and shampoo.

Onion juice + egg

Take one egg and break it open in a small bowl. Now add two tablespoons of onion juice, then stir together until you get a smooth mixture.

Apply this mixture generously over your scalp and massage it gently with your fingertips for 5 minutes. Let it stay on your scalp for about 15-20 minutes before washing it off with lukewarm water and shampooing your hair as usual.

Onion juice + castor oil

You could also massage your scalp with a mixture of onion juice and castor oil to increase blood circulation and improve hair growth. Castor oil has been used as a remedy for many hair issues, including damaged and dry hair, since ancient times.

SEE: Is Castor Oil Good for Hair? How to Improve Your Hair’s Health With It

How Do You Extract Onion Juice?

The best way to extract juice from an onion is to use a juicer. Cut the onion in half and use the juicer to extract its juice.

If you do not have a juicer, grate the onion first. Place it on a muslin cloth or cheesecloth and squeeze out the juice in a bowl or cup. There’s no need to apply pressure, as the onion will release its juice easily.

Side Effects of Using Onion Juice To Grow Hair

There are many benefits of using onion juice to treat hair loss and boost regrowth. However, there are also a few side effects you should know.

Scalp irritation

Onions contain sulfur compounds that can trigger scalp irritation in some people, especially if you have sensitive skin. This is more common if the onion juice isn’t diluted with other ingredients before applying it to your hair.

This scalp irritation may cause temporary redness, sting, or itchiness. To avoid this, dilute your onion juice with water and other ingredients such as olive oil before applying it to your hair.

Burning sensation

Applying fresh onion juice to your scalp can lead to a burning sensation that goes away with time. The burning sensation is due to the presence of sulfur in onion juice.

Inflammation and rashes

If you have sensitive skin or scalp, use caution when applying onion juice to your hair. It can worsen the problem and cause inflammation and rashes.

Irritating odor

Onion has a strong smell that may irritate your nose, eyes, and other people around you. So, make sure you wash your hair with a mild shampoo after applying onion juice.

Skin discoloration

Another potential side effect of using onion juice for hair is skin discoloration, which is more likely if onion juice comes into contact with your skin repeatedly over several days or weeks.

The sulfur compounds in onions can irritate your skin and make it appear yellow or orange temporarily, especially around the hairline and ears.

SEE: These Tips for Natural Hair Growth Will Help You Save Money

Which Onion Is Best for Hair Growth?

The best onion to use for hair growth is the red onion. Red onions contain a high amount of sulfur, which helps boost collagen production in your hair follicles. This helps rebuild your hair follicles, thereby reducing hair loss and improving hair growth.

Red onions also contain antioxidants and antibacterial properties. These are essential for preventing scalp infections and dandruff, which can contribute to hair loss.

How Can You Make Onion Juice Smell Nice?

  • Apply a few drops of lavender essential oil or rosemary oil to the juice before applying it to your scalp. These oils also have antibacterial properties and can help fight against scalp infections.
  • Mix apple cider vinegar into the onion juice before applying it to your scalp. Vinegar helps eliminate the smell of onions.
  • Dilute the onion juice with water and let it sit for some minutes. The onion will still have all its benefits, but the smell will have gone out of it.


Can you store onion juice?

Yes, you can. Onion juice can be stored in the fridge for two to three days. To store onion juice, you need to freeze it into ice cubes using an ice cube tray or any other container you have at home.

How much onion juice should you use for your hair?

1-2 tablespoons. If you’re not sure how much onion juice to use, start with one to two tablespoons a day. This small amount can help grow your hair and treat many scalp infections. You can increase the dosage if you want, but it’s best to do so gradually.

How often should you use onion juice?

If you want to use onion juice for hair growth, then you can apply it 2-3 times a week. But if you are using onion juice to prevent hair loss, use it daily until you see a noticeable improvement in the condition of your hair.

Can you leave onion juice overnight?

Yes, you can. Leaving onion juice on your hair overnight can help unclog hair follicles, which allow for better circulation and stronger strands. However, if you can’t tolerate the smell, go ahead and rinse it off after an hour or two.


Onion juice is a natural and safe way to grow hair. You can use it to address various hair problems such as thinning of hair, premature graying, dandruff, and so on.

Onions have high sulfur content that stimulates collagen production in the tissues and helps in the growth of hair. So if you’ve been struggling to grow your hair, onion juice could work for you.

Thanks for reading.

To learn more about onion juice and other natural remedies for hair growth, visit Africana Fashion today.