The idea of making and using onion juice is quite unappealing, but, before dismissing it, you should be aware that there are several onion juice benefits, so you might want to give it a try… or at least be tolerant with those who use it.
The most popular benefit of onion juice is that of treatment against hair loss. I’ve found little scientific evidence to back this up, but many people would swear by it, including some of my friends, so maybe there’s something to it after all. I see no reason why people would recommend it if it doesn’t work – they don’t gain anything from it, unless it’s a global conspiracy to make the whole world smell of onions.
So, here’s how you’re supposed to use onion juice against hair loss: steam the onions, then place them in a normal juicer. You might want to juice a bunch of other vegetables after you’re done with the onions, as this helps remove the smell from the juicer. Apply the resulting juice to your scalp two or three times a week – a few drops on the patches affected by hair loss, with a pipette, and then massage it through. Allow at least four months before expecting to see any of the onion juice benefits.
You can add a few drops of lemon to help preserve the onion juice better – you can keep it for one week in the refrigerator, in a tightly covered container, because otherwise it will stench up everything else. If you keep it for more than one week, the smell becomes unbearable.
And speaking of smell… yes, your scalp will smell like onions too – not the hair, which you can wash with shampoo, but the scalp and the skin, which is a lot worse, because the smell will be stronger each time you sweat. One way to deal with this problem is to rinse thoroughly with water after you applied the onion juice, then to rinse again with a solution made with equal parts of water and apple vinegar, leave it on for several minutes, then rinse with clear water again. Lots of work, and it will only reduce the smell, not make it vanish completely, but hey, the health benefits of onion juice come at a steep price.
By the way, onion juice is also available commercially, you can find it in any well-supplied supermarket, usually in the section for spices or dips and ketchup.
Another one of the onion juice benefits is that it prevents the cold and flu, and alleviates respiratory problems by helping eliminate mucus. Take two-three teaspoons of onion juice mixed with honey every evening, and you should feel the effects quickly. It will also help you sleep better. This usage has been known for a long time; in traditional Chinese medicine, onions are recommended for chest and respiratory problems.
You can also use onion juice to eliminate the brown spots that show up on the skin after prolonged exposure to sun. Just rinse the spots with juice twice a day, or, if possible, place a bandage soaked in onion juice on top of them before going to sleep and leave it on all night. If the smell is a problem – and it generally is – use the same solution I mentioned above, water with apple vinegar; you can mix it directly with the onion juice to simplify things. The effects should be visible in a few days, and the spots should disappear completely in a couple of weeks.
If you’re wondering what kind of onions should you use for juicing in order to reap all these great health benefits, the answer is any, as long as they’re fresh. Just keep in mind that sweeter onions are less strong, so it might take longer to see their effects.
There seem to be no real side effects of using onion juice, as long as you do so with moderation, and, of course, you’re not allergic to onions. However, scientists are analyzing the possibility that onion juice increases testosterone levels. So far, the results in humans are inconclusive; tests have been performed only on mice, but you might want to be cautious just the same.