Struggling with hair loss? You might be surprised to learn that a common kitchen staple could be the answer you’re looking for. This post explores how onion juice can be a powerful, natural remedy to stop hair loss and encourage new growth, even for stubborn cases.
The Power of Onions for Your Hair
Onions are more than just a cooking ingredient; they’re packed with compounds that can significantly benefit your hair. The star player is sulfur, a key component in building keratin, the protein that makes up your hair. Without enough sulfur, your hair can’t produce the keratin it needs to be strong and healthy.
But that’s not all. Onions also contain a high amount of quercetin. This compound is particularly helpful if your hair loss is due to an autoimmune issue, like alopecia, where your body mistakenly attacks your hair follicles. Quercetin can help calm this response. It also seems to boost the growth hormones that hair follicles need to thrive. Plus, quercetin acts as a strong antimicrobial, which means it can help keep your scalp healthy by fighting off things like yeast, fungus, and mold. This can be a big help if you’re dealing with dandruff or other scalp issues that might be contributing to hair loss.
Key Takeaways
- Onion juice is rich in sulfur, which is vital for keratin production, the main protein in hair.
- Quercetin in onions can help with autoimmune hair loss (like alopecia) and increase hair follicle growth hormones.
- Onion juice has antimicrobial properties that protect the scalp from yeast, fungus, and mold.
- Rosemary oil, when added to onion juice, can be as effective as some hair loss medications.
- Fermenting onion juice can increase its beneficial compounds, like quercetin.
- Ensuring adequate Vitamin D intake and a healthy diet supports overall hair health.
How to Use Onion Juice for Hair Growth

Getting started with onion juice for hair growth is pretty straightforward. You’ll want to use an organic red onion, as these tend to have the highest concentration of quercetin.
Here’s a simple method:
- Prepare the Onion: Chop one red onion into small pieces.
- Blend: Place the chopped onion into a blender and blend until it forms a pulp or slurry.
- Strain: Put the blended onion mixture through a cheesecloth or a fine sieve to separate the juice from the pulp. Collect the liquid in a container.
- Apply to Scalp: In the shower, wet your hair. Then, take the onion juice and massage it directly into your scalp, focusing on the roots. Do this for a few minutes.
- Let it Sit: After massaging, get out of the shower. You can dry your body and then let the onion juice mixture sit on your scalp for about 30 minutes to an hour. Using a shower cap can help keep it contained.
- Rinse and Wash: Go back into the shower and rinse your hair thoroughly. Shampoo your hair twice to make sure any onion smell is completely gone.
Repeat this process twice a week for about four to six weeks. Many people start noticing new hair growth around week three or four.
Supercharging Your Onion Juice Treatment

Want to boost the effectiveness of your onion juice treatment? There are a couple of ways to take it to the next level.
Adding Rosemary Oil
One simple addition is rosemary oil. Just add about five drops of rosemary oil to your onion juice mixture before applying it to your scalp. Why rosemary oil? Studies have shown it can be as effective as some popular medications used for alopecia. Rosemary oil contains anti-inflammatory and antioxidant compounds that help increase blood flow to the scalp, which is great for hair follicles.
Fermenting the Onion Juice
Another powerful method is to ferment the onion juice. This process can actually increase the amount of beneficial compounds like quercetin and also enhance the overall nutritional value.
Here’s how to ferment onion juice:
- Prepare Onion Juice: Follow steps 1-3 from the basic method above to get your onion juice.
- Combine Ingredients: In a clean glass jar (like a mason jar), combine the onion juice, 8 ounces of water, 1 teaspoon of sea salt, and ½ teaspoon of raw honey.
- Ferment: Stir everything together well. Cover the jar with cheesecloth or a coffee filter, securing it with a rubber band. Leave the jar at room temperature for 72 hours to ferment. You might notice small bubbles forming, which is a sign of fermentation.
- Strain Again: After 72 hours, strain the fermented mixture through cheesecloth to get the liquid.
- Apply: Use this fermented onion juice on your scalp following the same application steps as the basic method (massage into scalp, leave for 30-60 minutes, rinse, shampoo twice).
Fermenting the onion juice can also make its pH more acidic, around 5, which is considered therapeutic for the scalp.
Other Tips for Hair Regrowth
While onion juice can be a fantastic natural treatment, remember that overall health plays a big role in hair growth. Two other important factors to consider are:
- Vitamin D: Many people experiencing hair loss are deficient in Vitamin D. Taking 10,000 to 20,000 IU of Vitamin D3 daily can be very helpful. Getting some sun exposure is also beneficial.
- Diet: Eating a healthy diet that provides the necessary nutrients for hair growth is also crucial. Make sure you’re getting enough vitamins and minerals that support healthy hair follicles and strands.
By combining natural remedies like onion juice with attention to your overall health, you can create a powerful strategy to combat hair loss and encourage thicker, healthier hair growth.
Source: Dr. Eric Berg