Side Effects of Onion on Hair You Don’t Know yet

Side Effects of Onion on Hair

Onion is very familiar to skincare enthusiasts due to its swarm of benefits. To be precise, it is a spice to add flavor to our regular dishes. However, most people are unaware of the onion’s medicinal qualities. It has sulfur which is used to treat different clinical conditions. This plant grows across the globe, and people from everywhere consume the same in several forms. Since the old ages, denizens have been using onion for medicinal purposes because of its anti-diabetic and anti-inflammatory properties.Onion is being rapidly used for hair treatment. However, there are side effects of onion on hair as well.

It may cause an itchy scalp, accompanied by a burning sensation and leaving a terrible odor on your hair. People are asking so many questions, including how much it is helpful for hair, how it affects our hair, etc. To be very honest, onion juice contains vitamin A, dietary fibers, many antioxidants. However, it can be unhealthy for your scalp when used in excess amounts.

Onion juice on your hair

According to skin experts, onion juice is a very effective way to boost hair health. Besides, it promotes hair regrowth, followed by strengthening the antioxidant level enzyme catalyze. It contains minerals, vitamins, and other essential nutrients to nourish the hair follicles.

If you are prone to allergy, then you may experience side effects. When onion juice is applied to your hair, it will provide extra sulfur. Therefore, it promotes collagen production. Now, let’s take a look at the 

Side effects of onion on hair.

Can cause itchy scalp

Scratching your hair consistently may be irritating, especially in a public place. As onion is enriched with sulfur, there will be a prolonged irritation to the scalp if it’s not correctly washed after applying the same on your hair.

Onion juice is very effective for growing your hair, but make sure you are not using it consistently. Blend it well and use it once or twice a week.

Burning sensation

It is one of the side effects of onion on hair. Regular usage of onion juice will not give you the best result, but it will irritate your scalp. As a result, scratching your hair and therefore the burning sensation will take place.

Besides, constant use of onion juice may create a wound on the scalp if you don’t take proper care. People having sensitive scalp would face the nightmare. To prevent any infection, make sure you are not using it consistently.

Will leave an unpleasant odor

Use it immediately after blending the onion. However, if stored, it will leave your hair terrible, even after washing it off. Collagen is responsible for this foul odor.

Scalp eczema

Onion contains sulfur that will dry out the essential oils, which moisturizes your hair. This will lead to scalp eczema. This is one of the significant side effects of onion on hair.

Drying out the scalp

Onion juice can restore hair strength. However, using the same without emollient can cause dry your hair. If you have a sensitive scalp, try using the same with a conditioner. Make sure you are not using it too often.

Can cause hair loss

How can onion juice cause hair loss while it’s used for hair growth? Sounds strange? If your hair is sensitive, then you should avoid onion juice. Otherwise, it will cause damage to your hair. However, you can stick to the essential oils that will promote further growth in your hair.

Benefits of onion on hair

Not just having the side effects, but onion is famous due to its medicinal properties. It is used for preventing hair loss, followed by adding shine to it. This particular onion oil is quite beneficial for improving the blood circulation of the scalp. In turn, the scalp gets the required exercise, followed by making it healthy.

Treats dandruff

Almost 8 out of 10 people suffer from dandruff. It is not only embarrassing, but it also causes hair damage. As onion has antibacterial properties, it will cause hair damage. Besides, it can treat scalp infection. However, consult a doctor immediately if you are facing persistent problems.

Prevents hair greying

Are you experiencing premature hair whitening? Many people are also there who are suffering from the same issue. Onion oil can help you by preventing hair greying and promoting healthy hair at the same time. It improves the hair texture. Use it once or twice a week to maintain the PH level of hair.

Works as a conditioner

Onion hair oil will work as a great conditioner if you use the same every time you shampoo your hair. Mix coconut hair oil and onion hair oil. Use this oil every time you shampoo your hair. This mixture will condition the dry hair, followed by boosting the hair volume. If you have frizzy and unruly hair, pick onion oil to get relief from the issue.

Combats with a lice infestation

Lice infestation takes place from the unhealthy scalp and dirty hair. Use onion oil to prevent the same. It will not only nourish your scalp but will also protect you from further lice infestation.  


1.What things can I add to onion juice for hair growth?

Using onion oil alone may irritate the scalp. You can use the same with essential oils or any soothing agents, including honey, olive oil, coconut oil, aloe vera, or tea tree oil.

2.Is it harmful to hair?

Till you are not excessively with your hair, it is safe enough. Moreover, if you have allergic skin, then don’t use it. It must be used in moderation, along with an emollient to avoid irritation.

3.May I apply onion juice overnight?

Yes. Use onion juice overnight on your skin and wash it in the morning. This will help to get better results. However, you can do a patch test before leaving it on your skin. In turn, it will help you to make sure that there is no irritation.

4.How can I get rid of the unpleasant smell of onion from my hair? 

The smell of onion can be washed away with citrus shampoo. Use the same every time you shampoo your hair. You can also use lemon water on your hair after applying onion juice.

5.How often can I apply it?

You can apply onion juice once or twice a week. Leave it for 30 minutes and then rinse it off to get 

better results.

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