Wella Color Charm Permanent Gel Haircolor provides the speed of liquid plus the conditioning & convenience of cream. Gelfuse Technology saturates, penetrates and fuses the hair for vibrant, long lasting, fade resistant results. Long-lasting, fade-resistant results Excellent gray coverage Speed of liquid, conditioning and convenience of cream. Mix 1 part Color Charm gel haircolor with 2 parts Color Charm developer. Apply to hair and develop for 30 minutes.