Everything You Should Know about Onion Shampoo - Step To Health

Everything You Should Know about Onion Shampoo

An onion shampoo is a natural product that concentrates helpful nutrients for the hair. In fact, some believe it can stimulate growth, reduce hair loss and revitalize dry-looking strands. Are you ready to try it?
Everything You Should Know about Onion Shampoo

Last update: 05 August, 2021

Onion shampoo is currently a popular hair product on the market. In fact, it’s an ideal complement to reduce excessive hair loss, dryness, and breakage, among other hair disorders, due to its composition. That’s fine, but is it effective? Where’s the evidence, if any?

It probably doesn’t come as a surprise that onions have many health properties and of course, this includes for the scalp. It contains flavonoids, vitamins, minerals, and other phytochemicals so it’s a great ingredient to include in your beauty routine. Today’s article will tell you everything you might want to know about this shampoo. Read on!

The advantages of onion shampoo

Nothing is 100% effective when it comes to the health of your scalp. So, keep in mind that it depends on many factors, such as nutrition, state of health, and consumption of medications, among others. So be aware that an onion shampoo won’t do miracles.

In fact, current evidence about its effects on hair is limited and more research is needed to corroborate its effectiveness. Still, anecdotal data and small studies suggest it may be useful against alopecia, dandruff, and dry hair. Let’s take a closer look.

A woman losing hair.
There are various remedies to stop hair loss and they include the use of onion but it isn’t a magic ingredient.

Find out What Should the Best Eco-friendly Shampoos Contain?

Hair growth

A study reported in the Journal of Drug Delivery and Therapeutics determined that onions promote healthy hair growth. In particular, its extracts added in a coconut, castor, and eucalyptus shampoo provided the following benefits:

  • It stimulated growth
  • It nourished hair follicles
  • Also, it hydrated hair strands and scalp

Hydration and revitalization

The nutrients contained in onions can help restore the healthy appearance of dry and brittle hair. As an article in Life Science Journal states, it contains flavonoids such as kaempferol and quercetin, which have antioxidant and anti-inflammatory properties.

These substances not only minimize the negative impact of free radicals on the hair but also promote blood flow and nutrient transport. The result? Hydrated silky hair.

Reduction of excessive hair loss

In addition to stimulating hair growth, onion shampoo seems to be an adjuvant against excessive hair loss. In this regard, a small study in The Journal of Dermatology concluded that onion juice has potential as a treatment for alopecia. However, we need more evidence.

Dandruff control

Onion-based remedies have been a widely used adjunct to combat dandruff. People attribute it to its antifungal and antimicrobial properties, which could explain this.

Also, a study in the journal Fitoterapia, concludes that onion has promising effects against fungal-associated diseases. Especially against Malassezia furfur, the cause of dandruff.

Our onion shampoo

There’s a wide variety of onion shampoos currently on the market. However, you can easily make one at home by following the steps below.


  • 1 medium red onion
  • 12 fluid ounces of your favorite shampoo


  • First of all, be sure to get a fragrant shampoo that can conceal that of the onion
  • Then, chop the onion into small pieces and incorporate them into the shampoo bottle
  • Close and shake it for a few seconds and let it sit in a cool, dark place for 10 to 15 days
  • Finally, filter the shampoo after that time and begin to use it

How to apply

  • Apply a dollop of shampoo all over the hair and scalp and massage for five to eight minutes
  • Repeat the application two or three times a week for about 3 months
  • Then, skip it for about a month and repeat the treatment
A woman washing her hair.
Hair professionals recommend applying this shampoo for 3 months and then skip it for a month before repeating the process.

Recommendations for using onion shampoo

This shampoo may irritate sensitive skin so do a small test before using it. Go ahead and use it if there are no unwanted reactions. Don’t use it otherwise.

Finally, skip its use if you have any scalp conditions. As always, consult a dermatologist so they can tell you more about which substances are safe for you. This kind of professional should be able to evaluate if it’s a good idea for you to use this type of shampoo.

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How to Tackle Hair Loss with Onion-based Remedies
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How to Tackle Hair Loss with Onion-based Remedies

By combining the nutrients of an onion with other healthy ingredients, you can effectively tackle hair loss and stimulate its growth.

  • Sharquie, K. E., & Al-Obaidi, H. K. (2002). Onion Juice (Allium cepa L.), A New Topical Treatment for Alopecia Areata. The Journal of Dermatology, 29(6), 343–346. https://doi.org/10.1111/j.1346-8138.2002.tb00277.x
  • Patel, N.R., Mohite, S., & Shaha, R.R. (2018). FORMULATION AND EVALUATION OF ONION HAIR NOURISHING SHAMPOO. Journal of Drug Delivery and Therapeutics, 8, 335-337.
  • Shafiq, S., Shakir, M., & Ali, Q. (2017). Medicinal uses of Onion (Allium cepa L.): An Overview. Life Science Journal14(6), 100–107. Retrieved from http://www.lifesciencesite.comOnline