UPTO 30% Off on All Treatments
checkFacts Checked

Onion Juice For Hair Growth: How Does It Works For Hair Loss?

Dr. Debatri Datta
Reviewed by Dr. Debatri Datta
MBBS, MD in Dermatology, Venereology & Leprosy
Written by : Dr. Debatri Datta
Updated on: March 14, 2025

Onion juice is a natural remedy popular for hair growth. With its high sulphur content, onion juice for hair growth [1] effectively nourishes the scalp, strengthens hair follicles, promotes regrowth, and reduces hair fall. People use onion juice in different ways on their hair, like masks and packs. Hair loss and thinning are very common these days, with millions of people suffering from this issue worldwide. Several ways of treating these issues include onion home remedies for hair growth. One of the richest sources of essential micro-nutrients [2] for hair, onion juice offers impressive results in improving scalp health and promoting hair growth. This write-up answers the question, ‘Is onion good for hair growth?’ If yes, what is the science behind it, and how do you prepare and apply it? Read More

How Does Onion Juice Work For Hair Growth?

Scientific studies show that onion juice is great for fighting hair loss. [3] Here are a few points that validate the research:

  • Sulphur Content:

Onion has dietary sulphur that supports hair growth. Sulphur is a primary amino acid component that eventually forms proteins and keratin. The latter is essential for strong hair. That is how onion for hair growth works.

  • Collagen Production:

Applying onion juice to the scalp helps deliver sulphur in excess quantity. It is also known to support collagen production. This promotes the formation of healthy scalp cells and hair growth.

  • Improved Blood Circulation:

Studies [4] conducted in this field show that applying onion juice improves blood circulation to hair follicles, thereby strengthening the follicles. It showed that participants who used onion juice during hair wash experienced better hair regrowth than those who used plain water.

  • Natural Anti-Microbial Properties:

Onions possess anti-bacterial properties that may help in combating scalp infections, which can sometimes contribute to hair fall. Maintaining a healthy scalp supports stronger hair follicles, promoting better hair growth.

  • Rich in Antioxidants:

Onions are a natural source of antioxidants like flavonoids, which help protect the body from damage caused by free radicals. These free radicals can accelerate ageing, weakening hair follicles, leading to thinning, and hair loss over time.

A note of caution, though: onion juice is not a cure for medical conditions like pattern baldness or alopecia.

How To Apply Onion Juice For Hair Growth?

Applying an onion juice pack for hair growth is a simple process. Since most on-the-shelf shampoos do not contain onion juice, you must make it at home or use commercially prepared onion extracts.

Follow these steps:

  • Peel four onions and chop them into small pieces.
  • Extract the juice by squeezing these cut pieces or using a juicer.
  • Another alternative is to use a blender to make a paste of the onion pieces. By using a cheesecloth, you can squeeze out the juice.
  • Now, start applying the juice to the scalp. You can also use it directly on the hair roots.

Onion juice has a strong odour, which could be a potential problem for many people. Adding a few drops of peppermint, rosemary, or lavender essential oils can help reduce the odour’s intensity.

Onion Juice Hair Mask Recipe

For optimal results, apply this mixture three to four times per week.

  • Mix 3 tsp of onion juice with 2 tsp of lemon juice.
  • Apply evenly to the scalp and hair roots.
  • Leave it for half an hour.
  • Rinse your hair using a mild shampoo. This will remove any remaining odour of the onion juice.

Follow these instructions for the onion juice for hair growth recipe:

Ingredients:

  • 1 medium-sized onion

Instructions:

  1. Grate or blend the onion to extract the juice.
  2. Strain the juice to remove the pulp.
  3. Apply it directly or massage it gently on the scalp.
  4. Wash your hair thoroughly with a mild shampoo after 30 to 60 minutes.

Alternatively, you can use a cotton pad to apply onion juice for hair growth. Soak the pad in onion juice and slowly massage it on the scalp. Keep the onion juice pack on for hair growth for 15 minutes, and then wash your hair.

Side Effects Of Using Onion Juice On Hair

Onion home remedies for hair growth are generally safe as they are natural extracts. However, in some people, this may cause side effects, like [5]

  • Skin irritation
  • Redness
  • Itching

People hypersensitive to strong odour may find it irritating. Stop using it if you are experiencing severe reactions.

Takeaway

Onion juice is an affordable natural remedy to stimulate hair growth and fight hair loss. Rubbing onion on the scalp for hair growth offers better results when you do it consistently. Ensure you follow a healthy diet and invest time in proper hair care, using the onion remedy for hair growth. Before getting started on any new treatment, natural or otherwise, it is best to consult a dermatologist. This is particularly applicable to people with existing scalp issues.

Frequently Asked Question On Onion Juice For Hair Growth

Yes, onion juice is a natural remedy for hair growth because it is rich in sulphur, antioxidants, and anti-bacterial properties. Onion juice for hair growth strengthens hair follicles, reduces hair fall, and promotes regrowth. The consistent use of onion juice improves blood circulation to the scalp and the thickness of hair.

Red onions are the best onions for fast hair growth. They have high sulphur content, which nourishes the hair follicles and strengthens roots. Improved blood circulation reduces hair fall, promoting thicker and healthier hair strands.

Yes, onion paste is one of the best natural remedies. The paste is rich in essential nutrients that deliver loads of nutrition to the scalp on direct application. This reduces breakage and stimulates hair follicles. However, onion juice packs for hair growth are a better option to avoid the mess.

The sulphur content in onion juice plays a crucial role in collagen production and improves blood circulation to the scalp. This strengthens the roots and makes the scalp healthy, preventing thinning.

Due to the strong smell of onion, the juice can have an overpowering odour, which may have a repelling effect. We can fix this to a certain extent by mixing essential oils. Allergic reactions can also occur. Therefore, do a patch test before using onion juice for hair growth.

The sulphur content and antioxidants in onion juice help hair growth by boosting collagen production. Onions for hair growth are the ideal natural resource as they help keep the scalp healthy, promoting strong hair growth.

One can notice visible changes in 4 to 6 weeks with regular use. The results vary from person to person. The key is applying consistently – at least twice a week.

Use the onion juice pack for optimal results for hair growth at least twice or thrice weekly. Frequent use strengthens hair follicles, reduces hair fall, and improves hair density. Scalp dryness and irritation are usually not seen when onion juice is applied to the scalp.

Visible results are witnessed within one to two months. Using an onion for faster hair growth is possible with regular usage. You need to be consistent in the application of onion juice.

The onion remedy for hair growth is not ideal for daily use. This may irritate the scalp and can cause excessive dryness. Optimal results are seen when you apply it at least two to three times a week.

This is not recommended. Applying onion juice for hair growth overnight can result in scalp irritation. Applying an onion juice pack between 30 and 60 minutes is best. Rinse your hair with a mild shampoo for the best results.

UPTO 30% Off on All Treatments
UPTO 30% Off on All Treatments