Wholesale Nu-Pore Hair Color - Medium Brown Nu-Pore Hair Color is a permanent cream hairdye that turns your hair into a medium brown with maximum conditioning with vibrant color. This product is ammonia free. Nu-Pore Hair Color contains a formula specifically designed for radiance and beauty. It leaves hair strong and healthy looking with magnificent moisture drenched color and shine. You can achieve your favorite hair color after only 20-40 minutes. One application packed 24 to a case.