Onion Shampoo Benefits, Uses, & Recipe

onion shampoo

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Onion shampoo is a product of natural origin that concentrates beneficial nutrients for the hair. It is believed to stimulate growth, reduce hair loss and revitalize dry-looking strands.

Nowadays, this veggie cleanser is one of the most popular hair products on the market. Due to its composition is an ideal complement to reduce excessive hair loss, dryness, and breakage, among other hair disorders.

Is it effective and is there any evidence?

Although it may seem surprising, onion has shown interesting properties for hair health. Its flavonoids content, vitamins, minerals, and other phytochemicals make it a good option to complement your beauty routine.

This article tells you everything you need to know about onion shampoo and how to prepare it. Read on!

Onion shampoo benefits

onion shampoo

When it comes to hair care, there is no specific product that is 100% effective. It must be taken into account that hair alterations depend on many factors, such as nutrition, health conditions, medications, among others.

Another of the most outstanding effects of onion is its antioxidant activity, as well as its protective action on hair coloring and its anti-aging property.

Onion extract provides the nutrients the hair needs to give it a much healthier appearance.

The passage of time can be seen not only in the skin but also in our hair. Onion shampoos also help slow down the appearance of gray hair and aging, providing photoprotection to discoloration, protecting the hair against solar radiation.

In addition, it helps regulate seborrheic glands and eliminates excess oil, cleansing the follicle.

It removes dead cells from the scalp’s surface, preventing pore asphyxiation and allowing for better growth.

It has mild cleansing and hair conditioning properties. Onions have antiseptic and antibacterial properties with high vitamins and mineral salts, very effective in combating fungi and bacteria.

Onion shampoo for hair growth

A study reported in the Journal of Drug Delivery and Therapeutics determined that onion is useful in promoting healthy hair growth.

You may want to read: Best Vitamins for Hair Growth

In particular, its extracts added in a coconut, castor, and eucalyptus shampoo provided the following benefits:

  • Stimulation of strand growth
  • Nourishment of hair follicles
  • Hydrated hair strands and scalp

As we said before, the nutrients contained in onion are useful for restoring 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 act as antioxidants and anti-inflammatories.

These substances minimize the negative impact of free radicals on the hair and promote blood flow and nutrient transport. The result? More hydrated and silky hair.

In addition to stimulating hair growth, onion shampoo appears to be an adjuvant against excessive hair loss.

In this regard, a small study carried out by The Journal of Dermatology concluded that onion juice has the potential to treat alopecia. However, more evidence is needed.

Onion-based remedies have been a widely used adjunct to combat dandruff. It is attributed to antifungal and antimicrobial properties, which could explain this benefit.

Several other studies concluded that onion has promising effects against fungal-associated diseases. Especially against Malassezia furfur, which causes dandruff.

How to make onion shampoo at home?

onion shampoo

On the market, there is a wide variety of onion shampoo presentations. However, there is a simple method to prepare it at home. Below we detail the ingredients and the step-by-step guide.


  • 1 medium red onion
  • 350 milliliters of shampoo (preferred brand)


  • First of all, make sure you get a shampoo with enough perfume to camouflage the aroma of the onion
  • Once you have it, chop the onion into small pieces and put them inside the shampoo bottle
  • Close the bottle, shake it for a few seconds and let it sit in a cool, dark place for 10 to 15 days
  • After the recommended time period, filter the shampoo and start using it

How to apply:

  • Take the equivalent of a tablespoon of shampoo and apply it all over the hair and scalp. Leave it on for 5 to 8 minutes while massaging
  • Repeat the application 2 or 3 times a week for about 3 months
  • Then let the hair rest for 1 month and repeat the treatment

It is recommended to apply this shampoo for 3 months and rest for another month. Then you can resume the cycle.

Recommendations for using onion shampoo

The application of this shampoo can be irritating for people with sensitive scalp. Therefore, before using it in its entirety, perform a small test.

If there are no unwanted reactions, use it without problems. But, if you notice allergy or irritation, rinse immediately and discontinue use.

A professional will evaluate whether it is good or not to use this type of shampoo.

On the other hand, avoid using this product if you have scalp diseases. If so, it is best to consult a dermatologist to determine which substances are safe.


Evidence on onion shampoo effects is still limited, and more research is needed to corroborate its efficacy.

Therefore, it should be clarified that onion shampoo is not a miracle formula.

Still, anecdotal data and small studies suggest that it may be useful in combating alopecia, dandruff, and dry hair.

Different methods are recommended to stop hair loss. Although there is evidence in favor of onion, it should not be considered a magic product.

onion shampoo

Onion Shampoo Benefits, Uses, & Recipe
onion shampoo

Joel & The Wellness Team

Hey! Joel here; A graduate of Herbalism & Naturopathic Medicine School. My team and I are passionate about finding ways to improve our lives on a daily basis and truly believe in natural alternatives of doing so before seeking traditional medications. However, always consult with your Doctor/Physician first before taking any actions regarding your health. Stay Safe and Healthy!

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The information on this website has not been evaluated by the FDA and is not intended to diagnose, treat, prevent, or cure any disease.
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