SoColor Extra Blonding Cream is an additive mixed into Matrix SoColor permanent cream hair color formulas; it is not a standalone hair color and cannot be applied on its own. Added to a SoColor formula along with Matrix Cream Developer, it helps disperse the hair's natural underlying pigment so blonde shades come out cleaner, reds appear brighter, and brown tones read richer, giving a colorist up to one extra level of lift beyond what the base formula would achieve alone.
The standard formula combines a measured amount of Extra Blonding Cream with SoColor color and a proportionally larger amount of developer, chosen in the volume needed for the desired lift; adding more Extra Blonding Cream than recommended does not produce additional lift. It is incompatible with SoColor's Ultra.Blonde Series, SoRED, and HD Color Technology Red and Copper Series formulas. Because it involves developer selection and formula-building decisions that affect the final result and hair condition, this is a professional product mixed and applied by a licensed colorist during a salon color service, not a home color additive.