Onion Juice For Hair Growth Remedy: How I Regrew My Hair Naturally in 4 Weeks

Introduction

To be honest, I used to dread combing my hair. Every morning, I’d find huge amounts of it in my brush, and the bald spots were getting worse. I tried fancy oils, salon treatments, and even supplements, but nothing seemed to work.

Out of frustration, I decided to give an old-school remedy a try: onion juice for Hair Growth

Yes, it smells. Yes, it stings a little. But I was shocked by the results. Within three weeks, I started noticing tiny baby hairs sprouting along my hairline. I was so excited.

By week four, even my friends were commenting on how much fuller my hair looked.

If you’re struggling with thinning hair, bald spots, or breakage, let me show you how I did it and why onion juice might become your new haircare friend.

Why Onion Juice for Hair Growth Works

The real magic in onion juice comes from two main compounds:

• Sulfur – strengthens hair strands and supports keratin production (your hair’s main protein).
• Quercetin – a powerful antioxidant and anti-inflammatory compound that can help repair and revive damaged hair follicles.

These nutrients work together to reduce scalp inflammation, stimulate dormant follicles, and strengthen roots.

How to Make Onion Juice for Hair Growth

This basic DIY is super easy:

You’ll need:

• 1 organic red onion (more potent than white)
• Blender or grater, you can check the blender I use here
• Fine sieve
• mason jar, check out these mason jars I use.

Directions:

1. Peel and chop the onion.
2. Blend or grate it to a pulp.
3. Strain the mixture using a cheesecloth to extract the juice.
4. Pour the juice into a clean bottle or jar. Store in the fridge for up to 4 days.

How to Apply Onion Juice to Your Scalp

1. Dampen your hair with water.
2. Apply onion juice directly to your scalp, focusing on areas with hair thinning.
3. Gently massage for 2–3 minutes.
4. Leave it on for 30–60 minutes. (Cover with a shower cap to minimize mess.)
5. Rinse and shampoo twice to remove the smell.

Do this 2 times a week for 4–6 weeks consistently.

How to Mask the Smell

Onion juice isn’t the most glamorous beauty product. But if the smell turns you off, try this:

• Add 5–10 drops of rosemary essential oil to your onion juice mix.
• Use a scented shampoo with peppermint or lavender to cleanse your hair after treatment.

Boost Results with Rosemary Oil

I started adding rosemary oil to my onion juice around week two, and the results got even better. Studies show rosemary oil improves circulation to the scalp and supports hair regrowth just as well as conventional treatments.

How to use:

• Add 5–10 drops of 100% pure rosemary oil to 2 tablespoons of onion juice.
• Mix well and apply as usual.

This combo smells better and works faster.

Try Fermented Onion Juice for a Stronger Scalp Treatment

If you’re dealing with a flaky scalp or stubborn bald patches, try fermenting your onion juice. Fermentation enhances the bioavailability of nutrients and introduces good bacteria that help balance your scalp’s pH.

How to make fermented onion juice:

1. Make fresh onion juice.
2. Add:
   • 1 cup water
   • 1 tsp sea salt
   • ½ tsp raw honey
3. Stir well and cover the container with a cheesecloth.
4. Let it sit at room temperature for 72 hours (you’ll see bubbles forming!).

It’s safe to use, and the natural acidity helps fight dandruff and fungal issues too.

What the Science Says

From my research, I found out that in a 2002 study,

• 86.9% of people using onion juice experienced significant hair regrowth after 6 weeks.
• Only 13% of people in the control group (using water) saw changes.

Another animal study showed that quercetin, found in onions, led to full hair regrowth in mice with induced alopecia.

This remedy might sound “too natural” to work, but it’s backed by solid science.

Extra Tips to Support Hair Growth

Take Vitamin D3

Low vitamin D levels are linked to hair loss. I take 10,000–20,000 IU daily and get regular sunlight when I can.

Eat Hair-Friendly Foods

Focus on:

• Protein (eggs, beans, chicken)
• Biotin (avocados, almonds, sweet potatoes)
• Zinc (pumpkin seeds, beef)
• Omega-3s (salmon, chia seeds)

Healthy hair starts with a healthy scalp and body!

Final Thoughts: Onion Juice for Hair Growth

If you’ve tried everything and your hair still won’t grow, don’t overlook what’s sitting in your kitchen. Onion juice may be stinky, but the results speak for themselves.

It helped me feel confident again. My bald patches filled in. My comb no longer scares me. And all it took was consistency, patience.

So, go ahead and give it a try. Your hair might thank you.

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