DIY Onion Hair Rinse for Thicker Looking Hair

Discover a simple, natural way to support the look of thicker, healthier hair using an ingredient you likely have in your kitchen: onions. This DIY onion hair rinse recipe is easy to make and use, offering a traditional approach to hair care.

A four-panel instructional guide showing the steps for making an onion hair rinse boiling onions straining the liquid ma
Learn how to make your own onion hair rinse for a simple hair care boost.

Quick Recipe

Prep time: 10 minutes

Cook time: 15-20 minutes

Best for: Supporting hair thickness and shine

Use type: Hair rinse

Main ingredients:

  • Onions
  • Water

Ingredients

  • 2-3 medium red or purple onions
  • 4-5 cups of water

How to Make It

  1. Prepare the Onions: Peel and roughly chop the onions into medium-sized pieces. There’s no need for fine chopping, as we’ll be straining the liquid.
  2. Boil the Onions: Place the chopped onions in a pot with 4-5 cups of water. Bring the mixture to a boil, then reduce the heat and let it simmer for about 15-20 minutes. The water should take on a light purple or yellowish hue.
  3. Cool and Strain: Remove the pot from the heat and let the onion mixture cool completely to room temperature. Once cool, strain the liquid using a fine-mesh sieve or cheesecloth into a clean bowl or bottle. Discard the solid onion pieces.
Close-up of a glass bottle filled with clear light purple onion water extract ready for use with blurred onions in the b
Your homemade onion rinse is ready after boiling and straining.

How to Use It

  1. Wash Your Hair: Begin by washing your hair as you normally would with shampoo. You may choose to use conditioner afterward or skip it if you prefer to use the onion rinse as your final step.
  2. Apply the Rinse: After shampooing (and conditioning, if desired), slowly pour the onion water over your scalp and hair. Gently massage the liquid into your scalp with your fingertips for a few minutes, ensuring it covers all areas.
  3. Leave and Rinse: Allow the onion rinse to sit on your hair for at least 30 minutes. You can cover your hair with a shower cap during this time if you wish. Afterward, rinse your hair thoroughly with cool water until the scent of onion is significantly reduced or gone.

How Often to Use It

For best results, you can use this onion hair rinse 1-2 times a week. Consistent use over several weeks may help support the appearance of healthier-looking hair.

Why These Ingredients Are Used

Onions

Onions are rich in sulfur, which is a component of keratin, a protein vital for hair. Traditionally, the sulfur in onions is believed to help nourish hair follicles and support hair strength, contributing to a healthy-looking scalp and potentially supporting the appearance of thicker hair over time. They also contain antioxidants that may help protect hair from environmental damage.

Water

Water acts as the carrier for the beneficial compounds extracted from the onions. It helps dilute the potent onion properties, making it gentle enough for topical application to the scalp and hair, and ensures easy distribution of the treatment.

What Results to Expect

Regular use of an onion hair rinse may help leave your hair feeling softer and looking shinier. Over time, it can support a healthy scalp environment, which is often associated with the appearance of thicker, more voluminous hair. Individual results can vary, and consistency is key for natural remedies.

Safety Notes

  • Patch Test First: Always perform a patch test on a small area of your skin (e.g., behind your ear or inner arm) before applying the rinse to your entire scalp to check for any irritation or allergic reactions.
  • Use Gently: Apply and massage the rinse gently. Avoid vigorous scrubbing, especially if your scalp is sensitive.
  • Avoid Irritated Skin: Do not use this rinse on irritated, broken, or sensitive skin. If you have any scalp conditions, consult a doctor before trying new remedies.
  • Stop If Discomfort Occurs: If you experience any redness, itching, burning, or discomfort, rinse your hair immediately and discontinue use.
  • Onion Odor: Be aware that onions have a strong smell. While rinsing thoroughly can help minimize it, a faint scent might linger, especially when hair is wet.
A woman s hand gently massaging her scalp with the onion hair rinse showing healthy dark hair in a bathroom setting
Gentle massage helps the onion rinse penetrate your scalp.

FAQ

Can I store onion hair rinse?

Yes, you can store the onion hair rinse in a sealed container in the refrigerator for up to one week. After that, it’s best to prepare a fresh batch for optimal effectiveness and hygiene.

Will my hair smell like onions?

While a thorough rinse helps, a faint onion smell might persist, especially when your hair is wet. You can try following up with a light, fragrant conditioner or a final rinse with diluted apple cider vinegar to help neutralize the odor.

How long until I see results?

Natural remedies work differently for everyone. Consistent use over several weeks to a few months is usually recommended before expecting to see noticeable changes in hair appearance, such as increased shine or a feeling of strength.

Final Thoughts

Embracing natural solutions like an onion hair rinse can be a wonderful addition to your beauty routine. This simple DIY offers a traditional way to care for your hair, supporting its natural beauty and potentially enhancing the appearance of thickness and shine. Give it a try and see how this kitchen staple can benefit your locks!

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