Onion juice helps treat hair loss due to its high sulfur content, which helps improve blood circulation to the hair follicles, regenerate hair follicles and reduce inflammation.
The antibacterial properties in onion juice also help kill germs and parasites, and treat scalp infections that can cause hair loss.
In a 2002 study published in the Journal of Dermatology, almost 74 percent of the study participants who applied onion juice on the scalp experienced significant hair regrowth.
- Extract the juice of one onion by grating it and then strain it. Apply the juice directly onto the scalp. Leave it on for about 30 minutes, and then wash it off. Finally, shampoo your hair.
- Mix together three tablespoons of onion juice and two tablespoons of aloe vera gel. You can also add one tablespoon of olive oil. Apply this mixture onto your scalp and leave it on for at least 30 minutes before rinsing it off and shampooing your hair.
Repeat either of these remedies two or three times a week for several weeks.