Red onions are known for their higher antioxidant content ... Do not apply onion juice to your scalp if you develop skin irritation from the patch test. The potential benefits of onion juice for hair ...
Onion Juice: Onion juice is rich in sulphur, which can stimulate hair growth. Recipe: Grate an onion and extract the juice. Apply it to your scalp, massage gently, and leave it on for 30 minutes ...