Forget rosemary oil, RED ONION’s the secret to stopping hair loss, Dr claims – how to use it for new growth in 6 weeks

IF you’re battling with hair loss, fear not, you’ve come to the right place. And especially if you can’t afford to break the bank on expensive shampoos and posh haircare treatments, don’t worry, we’ve got just the thing for you.

(A doctor has revealed why those suffering with hair loss should use a red onion on their scalp.Credit: Getty)

A doctor has revealed the secret to combating hair loss - and you may be surprised to know that the key isn’t a high-street supplement or oil.

In fact, according to this pro, a red onion will help to fix your hair loss. Not only this, but it will also protect against fungus, mould and dandruff too - yes, you heard that correctly.

In a recent video that was posted on YouTube, Dr Eric Berg DC claimed that red onions are "packed with sulphur," which aids the body in producing keratin, the primary protein found in hair.

These pungent vegetables also boast "the highest amount of quercetin," which helps combat some of the root causes of hair loss.

The health expert acknowledged: "Quercitin helps increase the growth hormones of the hair follicle.

“It is also a powerful antimicrobial, protecting your scalp from overgrowth of yeast, fungus, mould, and dandruff."

The remedy involves a simple red onion as it "has the most quercetin" - but instead of eating it, Dr Berg explained how a homemade onion 'shampoo' could be an incredibly effective treatment.

To prepare the solution, simply chop and blend a red onion before straining the mixture through cheesecloth to fully separate the liquid from any remaining chunks.

Once the preparation is done, while in the shower, massage the onion juice through damp hair and into the roots for a few minutes.

But don’t rinse it off immediately - instead, Dr Berg advised beauty fans to let the solution sit in your locks for up to an hour and “allow it to work its magic.”

Then, jump back into the shower and "shampoo your hair twice" to wash away any lingering onion smells.

If the smell persists, you can add a dash of lemon juice or some rose water to your hair.

Backed by scientific evidence While this may seem like an online beauty fad, it has been supported by scientific evidence.

A small study published in the Journal of Dermatology suggested that applying onion juice to the scalp could potentially assist in hair regrowth for some.

This research involved participants suffering from alopecia areata, a type of patchy, non-scarring hair loss.

The researchers identified that hair growth commenced after just two weeks of applying onion juice to the scalp twice daily.

Not only this, but nearly 74% of the participants witnessed some hair regrowth after four weeks, and by six weeks, around 87% reported regrowth.

Both men and women participated in the study, with men demonstrating a higher rate of hair regrowth.

Iraq- Khalifa E Sharquie 1Department of Dermatology and Venereology, Baghdad Teaching Hospital, Iraq. PMID: 12126069

Iran- Sobhan Yousefi1 1. Ministry of Science, Research and Technology Energy Institute of Higher Education Saveh-Markazi Province Iran.

July 22, 2025 The Effect of Onion Juice on Strengthening Hair and Preventing Hair Loss sobhan.yousefi.daroo@gmail.com

Ref: Forget rosemary oil, RED ONION’s the secret to stopping hair loss, Dr claims – how to use it for new growth in 6 weeks