Jugo de cebolla para el crecimiento del cabello: ¿Funciona?

Onions, normally seen as a humble staple, may have other uses that simply add flavor to our food. It may sound surprising to some, but onion juice is also a home remedy for hair loss.

Hair loss is very common and can involve bald patches, complete baldness or gradual thinning.

According to the American Academy of Dermatology,  about 80 million men and women  in the United States have some degree of hair loss.

Fast Facts About Onion Juice For Hair Loss:

  •  Onions contain certain minerals, which may be good for hair.
  • Anyone allergic to onions should not use onion juice in their hair.
  • If the odor is too much to stand up, add a little lemon juice or rose water help.
  • Although a popular home remedy, more research is needed to conclude whether onion juice works as a hair loss treatment.


Causes of Hair Loss

Onions on a cutting board.
Hair loss and thinning hair is a common problem, and many are looking for natural treatments to stimulate hair growth. Onion juice is a possible treatment.

The  most common cause  of thinning or hair loss is an inherited condition called androgenetic alopecia.

Other causes of hair loss can develop include certain medical conditions, such as a side effect of some medications and hormonal changes.

Regardless of the cause, many people want to do what they can to re-grow their hair and prevent further losses, and there are some medications that can be used to treat hair loss.

A home remedy that many people have not heard of is onion juice.


Does onion juice work for hair regrowth?

The use of onion juice for hair regrowth has not been extensively investigated.

A small study published in the  Journal of Dermatology  indicated that the application of onion juice to the scalp could help the regeneration of hair in some people.

The study included participants who had alopecia areata, which is a non-healing, uneven form of hair loss.

Researchers found that hair growth began after 2 weeks of using onion juice, which was applied to the scalp twice a day.

Almost 74 percent of the participants had some hair regrowth after 4 weeks, and at 6 weeks approximately 87 percent experienced hair regrowth. Both men and women participated in the study and hair regrowth was higher among men.

Although the study did indicate positive results, it was small with only 38 participants.


How Onion Juice Can Help Hair

Receding hair line, hair loss and slimming in a young man.
Onions have many potential health benefits. Onion juice can help encourage the growth of thick, healthy hair.

Nutrients in the onion juice applied to the hair can nourish the hair follicles, which could increase the volume, shine and improve the strength of the hair. Additional nutrition can also minimize breakages and thinning.

As well as conditioning, the use of onion juice can also promote the growth of new hair in some people.

The reason for onion juice can help improve hair health may be due to the following:

Dietary sulfur

One theory of how onion juice can help hair growth is that onions contain dietary sulfur.

Sulfur is one of the most common minerals in the body. It is necessary for the proper production of enzymes and proteins. Sulfur is also found in keratin, which is one of the components of hair.

Sulfur in onion juice can provide the hair with the food it needs to grow. It can also increase the growth phase of hair.

Antimicrobial Properties

Onions have anti-bacterial properties, which can help fight infections of the scalp.

In some cases, a scalp infection can contribute to hair loss. A healthy scalp is more likely to have strong hair follicles.


Onions contain antioxidants, such as flavonoids. Antioxidants are believed to protect the body from free radicals.

It is believed that free radicals contribute to the aging process. For example, free radicals can destroy the hair follicles and lead to thinning and hair loss.

Canceling or decreasing free radicals can reduce damage to the hair follicles.


How to apply onion juice to hair

For those who want to try onion juice to improve hair health or promote regrowth, the process is simple.

To make onion juice, people should follow these steps:

  1. Peel four onions and cut into small pieces.
  2. Extract the juice from the onion, either by squeezing or using a juicer.
  3. Another option is to place the onion pieces in a blender and mix in a paste. Place the pasta on a cheesecloth and squeeze all the juice.
  4. Apply the juice to the scalp or hair roots.

A few drops of essential oil may also help decrease the potent odor of the juice. Peppermint, lavender and rosemary essential oils can be good options to dilute the odor.

There are currently no commercial products, such as shampoos, which contain onion juice.

However, commercially prepared onion juice and liquid onion extract are available for those who do not want to make their own.


Are there any side effects?

Person cutting a red onion on a cutting board.
Test the onion juice in a small patch of skin before applying it to the scalp to ensure that there is no allergic reaction.

Although onions are not eaten, contact with the skin can cause symptoms in people who are allergic.

Jugo de cebolla también puede ser irritante para la piel entre las personas que no son alérgicas, causando enrojecimiento y picazón.

Para asegurarse de que el jugo de cebolla no causa irritación significativa, puede ser útil hacer una prueba de parche antes de aplicar el líquido en todo el cuero cabelludo.

Para ello, una persona puede aplicar una pequeña cantidad de jugo de cebolla en el codo interior o la parte posterior del oído y esperar unos minutos. Si la irritación se desarrolla, lo mejor es no aplicar el jugo en el cuero cabelludo.

También es importante evitar el jugo de cebolla en los ojos. Jugo de cebolla que gotea en los ojos puede conducir a ardor y enrojecimiento.

Si el jugo de cebolla llega a los ojos, es importante que lo enjuague con agua fría.

Aunque no es un efecto secundario perjudicial, jugo de cebolla puede tener un olor muy fuerte.

El olor puede disuadir a algunas personas de continuar con el tratamiento del jugo de cebolla, ya que debe aplicarse todos los días para tener la mejor oportunidad de ser eficaz.


Para llevar

Alguna gente pudo tener éxito usando el jugo de la cebolla para el rebrote o el acondicionamiento del pelo mientras que otros no.

Además, el uso de jugo de cebolla no va a crecer cabello rápidamente. Se necesita un compromiso para aplicar el jugo de cebolla dos veces al día en el transcurso de varias semanas para ver si los resultados positivos se pueden lograr.

Los estudios son limitados, por lo que no está claro que el crecimiento del cabello continuará o si el pelo volverá a su estado original si el uso de jugo de cebolla se detiene.

The bottom line is that using onion juice, as a hair treatment, is probably not a miracle cure for hair loss. However, it seems to be safe for most people if they are not allergic to onions.

Side effects also appear to be minimal. It is also quite easy and not too costly to make an onion juice rinse for your hair.

Even if using onion juice does not produce a full head of hair, it probably will not damage existing hair.

Therefore, for some people with hair loss, the use of onion juice may be a possible natural remedy that is worth a try.



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