Can onion juice or onion extracts generate new hair on bald spots? If not, why are so many hair care products marketed with onion as a star ingredient?
In this article based on his educational video, Dr. John Watts — dermatologist, trichologist and hair transplant surgeon in Hyderabad with over 2000+ successful hair transplant surgeries — busts the myth surrounding onion juice in hair care.
The myth: onion juice regrows hair on bald spots
Hair loss is a common concern, and in the search for a solution, myths often take root. One such myth is that applying onion juice on the scalp can regrow hair on bald spots. According to Dr. John Watts, this belief is untrue.
“Onion juice cannot magically generate long and dense hair on bald spots. The spread of such myths can be attributed to various factors. Hence, they should be cautious,” he explains.
Why the myth spreads
Firstly, hair product companies may promote the benefits of onion juice to gain customers' trust. They highlight the ingredient's potential — even though most products may not contain pure onion juice, but rather a chemical combination derived from it. Some companies, however, do use the active herbal ingredient in shampoos or oils.
Secondly, individuals often fall for marketing tricks and fail to verify first-hand experiences or feedback from users or friends who have actually tried these products.
“They may believe the claims without seeking reliable evidence or testimonials. It is important to approach such claims with a critical mindset and seek professional advice,” says Dr. Watts.
What onion juice can actually do
Dr. Watts clarifies that onion juice may stimulate baby hair growth due to its stimulating or externally irritating factors — but it cannot effectively address bald spots.
What works for real bald spots
If you are experiencing hair loss and other remedies have not worked, a hair transplant procedure can be considered. However, a successful transplant requires a sufficient number of healthy donor hairs on the scalp or body.
The bottom line
The belief that onion juice can magically regrow hair on bald spots is a myth. While it may stimulate some baby hair growth, it is not a cure for baldness. Rely on scientific evidence — and on a professional evaluation — before spending money on miracle ingredients.
This article is for educational purposes only and is not a substitute for professional medical advice. Consult a qualified dermatologist for diagnosis and treatment.
Frequently asked questions
Can onion juice regrow hair on bald spots?
No. Onion juice cannot magically generate long and dense hair on bald spots. At most, it may stimulate some baby hair growth due to its irritating, stimulating effect on the scalp.
Do onion hair products actually contain onion juice?
Most products may not contain pure onion juice but rather a chemical combination derived from it, though some companies do use the active herbal ingredient.
What actually works for bald spots?
If other remedies have failed, a hair transplant can be considered — provided there are sufficient healthy donor hairs on the scalp or body for the procedure to succeed.
