SoColor Cult Demi-permanent, ammonia-free haircolor has oxidative dye shades ranging from the bright to the softest pastels. The ceramide conditioning formula conditions as it deposits long-lasting true tone. Lasts 2x longer than direct dye technology 10 Volume Matrix Cream Developer provides bright results on levels 8-10 20 Volume Matrix Cream Developer will produce brighter result on level 8-10 (Medium brightness on levels 6-7) Intermixable shades Timing up to 20 minutes at room temperature Clear shade to custom create new shades or for shine Use SoColor Cult Color Eraser for easy color removal.