What can make my hair black naturally?

What can make my hair black naturally? Mix 2-3 tsp of onion juice, 1 tsp of lemon juice and 1 tsp of olive oil. Massage into the scalp and hair and wash off after half an hour. An effective solution for greying hair, onion also promotes hair growth. It increases the enzyme, Catalase, thus darkening the hair.

Mix 2-3 tsp of onion juice, 1 tsp of lemon juice and 1 tsp of olive oil. Massage into the scalp and hair and wash off after half an hour. An effective solution for greying hair, onion also promotes hair growth. It increases the enzyme, Catalase, thus darkening the hair.