Bigen Speedy Hair Color - Natural Black(N)Bigen Speedy has been the dominant brand of hair colourant in Asia for over 20 years. Speedy is so simple and easy to use and has consistent and beautiful result. Once you try Bigen Speedy, it will be your hair colour of choice for life. How To Use Squeeze cream 1 and 2 onto the comb provided. Just comb through hair thoroughly. Then after 5 minutes wash it off. If darker shade is preferred then wait for 10 or 15 minutes before you rinse off your hair.