If you are looking for hair that is long, strong, smooth and thick, then artificial products will never suit you. It will yield better results if you go for something that is natural. Natural remedies add shine and health to the hair. If you are feeling annoyed with grey hair, you can easily cover them using a natural remedy i.e., black Mehndi. Mehndi, also known as henna, not only dyes your hair, but also makes the hair thicker, stronger and silky. If applied regularly, it will strengthen the roots of your hair naturally. The best thing about henna is that it will act upon hair roots and it will add on to the thickness of your hair strands which will accentuate the hair volume.