Bigen Permanent Powder Hair Color is ideal for those looking for beautiful, long-lasting results with excellent gray coverage or to enhance natural hair color. The unique powder formula is activated by water and deposits rich, natural-looking color into even the most stubborn gray hair. With no ammonia, this deposit only color is the gentle choice for rich color and optimum shine regardless of your natural hair color, consistency, condition, length or style! Available in 11 desirable colors!.