Matrix COLOR INSIDER 30 vol. 9% Oil-Delivery System Developer 1000ml. The Matrix COLOR INSIDER coloring system is formulated without ammonia using ODS2 technology (Oil Delivery System 2). Lightens up to 2 levels in 35 minutes. Provides up to 100% grey hair coverage. Perfect color uniformity, longevity, and precision, color after color. Optimized scalp comfort. Intense nourishment and hydration until the next coloring. Hair is softer than before the coloring. Sublime shine.