One natural remedy for hair loss is rosemary oil. Mix a few drops with a carrier oil like coconut or olive oil, then massage it into the scalp. Rosemary oil stimulates blood circulation, promoting hair growth and reducing hair loss. Another option is onion juice, rich in sulfur, which can nourish hair follicles and improve circulation when applied to the scalp. Blend onions, strain the juice, and apply it to the scalp for 15-30 minutes before washing. Regular use may strengthen hair and reduce hair fall. However, results vary, and consulting a healthcare professional for persistent hair loss is advisable.