Looking for a natural way to support the appearance of thicker, healthier hair? This simple DIY onion oil recipe, inspired by traditional home remedies, might be just what you need to add to your beauty routine. It focuses on using the humble onion, often celebrated for its potential benefits in hair care.

Quick Recipe
This recipe provides a simple way to create your own onion-infused oil for hair care at home.
- Prep time: 15 minutes
- Best for: Supporting hair growth, scalp health, and hair thickness
- Use type: Hair oil
- Main ingredients:
- Onion
- Carrier oil (coconut oil, olive oil, or almond oil)
Ingredients
- 1-2 medium-sized red onions
- 1/2 to 1 cup of carrier oil (such as organic coconut oil, extra virgin olive oil, or sweet almond oil)
- Optional: A few drops of essential oil for fragrance (like rosemary or lavender)
How to Make It
- Prepare the Onions: Peel the onions and chop them into small pieces. You can also grate them or blend them into a fine paste for maximum juice extraction.
- Heat the Oil: In a heavy-bottomed pan, pour your chosen carrier oil. Heat it on a very low flame.
- Infuse the Onions: Add the chopped or blended onion to the warm oil. Continue to heat on a very low flame, stirring occasionally, until the onions turn light golden brown and appear crispy. Be careful not to burn them, as this can affect the oil’s quality and smell. This process usually takes about 10-15 minutes.
- Cool and Strain: Remove the pan from the heat and let the oil cool down completely. Once cool, strain the oil through a fine-mesh sieve or a cheesecloth to separate the onion pieces. Ensure all onion solids are removed.
- Add Essential Oil (Optional): If desired, add a few drops of your preferred essential oil to the cooled onion oil. This can help mask the strong onion scent and add extra benefits.
- Store: Transfer the homemade onion oil into a clean, airtight glass bottle. Store it in a cool, dark place.

How to Use It
- Patch Test: Before full application, always perform a patch test on a small area of your skin to check for any sensitivity or allergic reactions.
- Apply to Scalp: Take a small amount of the onion oil and gently massage it directly onto your scalp using your fingertips. Ensure even coverage, focusing on areas where you desire more support.
- Distribute to Hair: You can also apply a small amount to the lengths of your hair to help nourish the strands.
- Leave On: Leave the oil on for at least 30 minutes to an hour. For deeper conditioning, some prefer to leave it overnight (cover your pillow to protect from oil and scent).
- Rinse: Wash your hair thoroughly with a mild shampoo. You may need to shampoo twice to completely remove the oil and any lingering onion scent.
How Often to Use It
For best results, incorporate this DIY onion oil into your routine 1-2 times a week. Consistent use over several weeks may help you observe noticeable changes in hair texture and appearance.
Why These Ingredients Are Used
Onion
Onions are traditionally valued in home remedies for their sulfur content, which is believed to help nourish hair follicles and support hair strength. They are also rich in antioxidants, which can help protect the scalp from environmental stressors.
Carrier Oils (Coconut, Olive, Almond)
These oils are excellent bases for hair remedies. Coconut oil is known for its ability to penetrate the hair shaft, while olive oil and almond oil are rich in vitamins and fatty acids that can help moisturize and soften hair, supporting a healthy-looking scalp and strands.
What Results to Expect
With regular use, this DIY onion oil may help to:
- Support the appearance of visibly thicker and fuller hair.
- Contribute to a healthier-looking scalp environment.
- Enhance the natural shine and softness of your hair.
- Improve the overall feel and manageability of your locks.
Results can vary for individuals, and consistency is key when using natural remedies.

Safety Notes
- Patch Test First: Always apply a small amount of the oil to an inconspicuous area of your skin (like behind the ear or inner forearm) and wait 24 hours to check for any irritation, redness, or allergic reaction before applying to your scalp.
- Use Gently: Apply and massage the oil gently. Avoid harsh scrubbing or pulling on your hair.
- Avoid Eye Contact: Onion juice can be irritating to the eyes. Be careful during preparation and application. If contact occurs, rinse thoroughly with water.
- Odor: Onion oil has a distinct smell. Adding essential oils can help, but a faint scent might linger.
- Stop if Discomfort Occurs: If you experience any burning, itching, or severe irritation, wash off the oil immediately and discontinue use.
- Consult a Professional: If you have sensitive skin conditions, scalp issues, or are pregnant or breastfeeding, consult with a healthcare professional before trying new home remedies.
FAQ
How long can I store homemade onion oil?
When stored in an airtight container in a cool, dark place, homemade onion oil can typically last for 2-4 weeks. If you notice any change in smell or appearance, it’s best to discard it.
Can I use any type of onion?
Red onions are commonly recommended for their higher sulfur content, but yellow or white onions can also be used. The key is the fresh onion juice and infusion.
Will onion oil make my hair smell?
Onion oil does have a characteristic smell. While adding essential oils can help, some people may still notice a faint scent. Washing your hair thoroughly with a good shampoo (possibly twice) should help minimize it.
Final Thoughts
Embracing natural solutions like this DIY onion oil can be a rewarding part of your hair care journey. With consistent use and proper application, you can help support the health and vitality of your hair, fostering a naturally beautiful look. Give it a try and see how this traditional remedy can work for you!



