If you want a hair color that works on your hair colors hair and covers grey hairs in five minutes, then Revlon Top Speed Hair Color is the perfect option for you. This hair colors is one of the best among all the hair colors available in the market as this is Ammonia free. This color is enriched with Keratin, Threonine that helps your hair from getting damaged and strengthens your hair. Result is intense dark colored hair that is silkier, smoother and softer than ever. This will give your hair a natural look and appeal, if you want to darken your hair lengthen the developing time and you will notice rich intense dark hair that shines. Revlon Top Speed Hair Color colors every strand of the hair from root tips. If you just want to retouch on greys that have appeared you can do that in minutes. This is perfect for working woman's who do not have time yet their profession demands to look well-groomed. This hair color can be applied by both men and woman.