There is currently no scientific evidence to support the claim that onions can make hair grow faster and stronger. However, there are some potential benefits to using onion juice or extract on the hair and scalp. Onions are high in sulfur, which is an important nutrient for the production of collagen. Collagen is a key component of hair, skin, and nails, so it is possible that consuming onions or using onion juice on the scalp could support healthy hair growth.
In addition, onions are rich in antioxidants, which may help to protect hair cells from damage caused by free radicals. Free radicals are unstable molecules that can cause oxidative stress, which can damage hair and lead to hair loss.
That being said, it is important to note that there is no conclusive evidence to suggest that applying onion juice or extract directly to the scalp can promote hair growth. If you want to try using onion juice or extract on your hair, it is best to do so with caution and to speak with a healthcare professional first. It is also important to maintain a healthy diet and lifestyle to support overall hair health, rather than relying solely on specific foods or remedies.
