I'm a male of 22 years old and I have very silky hair but the colour if my hair is unusually blonde and I wanted to turn them black. Do you have any suggestion for me? Can I colour my hair through the products which are available in the market, if so, what problems do I have to face in future? Will it impact my hair growth or I have to face any eye problems. Will be helpful if you reply and thank you very much. Awaiting your reply.