Quick Facts

Onions are high in vitamin C and quercetin which act as powerful antioxidant and anti-inflammatory agents. A 2002 study shows that 87% participants with alopecia experienced hair regrowth after applying it for 6 weeks.


✓ Stimulates hair regrowth

Growth Recipe?

Yes (See Below)

Onions are high in vitamin C and quercetin, which reduce oxidative damages to human cells and lower cholesterol levels to improve our immune system.

How effective is onion juice for hair growth?

onion juice for hair regrowthA research study published by the Journal of Dermatology indicates that onion juice can be an effective remedy for treating alopecia.

For this specific study, all participants had alopecia areata (also known as patchy hair loss caused by auto-immune disease) and the main objective was to find out the effectiveness of onion juice as a topical hair loss treatment.

How was the study designed?

The participants were then divided into 2 groups

  • Group 1: Treated with onion juice topically
  • Group 2: Treated with tap water topically (Control / Placebo group)

The first group of participants were advised to apply crude onion juice to their scalp twice a day, while the other group (tap water treated) was served as the placebo group.

The results

  • 2 weeks: The study shows after 2 weeks of applying crude onion juice twice everyday, the research team started noticing new hair growth in some patients.
  • 4 weeks: 74% of participants (17 people) experiencing re-growth
  • 6 weeks: The researchers observed 87% of participants (20 people) with hair regrowth. They also found that men show the better response than women (Hair re-growth observed in 93.7% male and 71.4% female).

Study takeaway

The positive result from the study is a possible indication that using onion juice as a topical hair loss natural treatment can be an effective solution for people suffering from alopecia areata.

Note: While the study was designed for treating alopecia areata participants naturally, many people also use onion juice for androgenetic alopecia (the most common hair loss type for male and female – also known as pattern hair loss).

How to make onion juice for hair loss?

There are two ways to approach this:

#1. Make your own onion juice at home

This video is helpful learning how to make onion juice for hair loss topical application.

In the video, she is using a squeezer like this one to squeeze the juice out.

#2. Buy onion liquid extract

If you don’t want to start from the scratch, use this onion liquid extract instead. It’s a convenient way of getting 100% pure onion extract (No alcohol included) for the topical use of your hair.

Recipe: How to make onion juice mask for hair growth


  • Onions


  1. Cut the onions into small pieces
  2. Use a juicer or a blender until it becomes liquidy (If you don’t have a juicer, use a grater with the fine side)
  3. (Optional) Use a cheese cloth to squeeze out the liquid into a bowl

How to Apply

There are several ways to apply onion juice onto the scalp: Fingers, a cotton ball, a basting brush, and a glass eye dropper bottle (the most sanitary way).

  1. Part your hair and gently press it into your scalp
  2. (Optional) Cover your hair with a haircap
  3. Leave it for 1+ hour
  4. Wash your hair with a shampoo and conditioner


  • A study indicates that participants applied onion juice twice a day for two months.
  • If you don’t want to go through all the trouble of chopping and blending to make your onion juice, check out this onion juice extract (100% pure non-alcohol version)

Have you tried onion juice for your hair loss? Share your experience.

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