Colorinsider� Boosters Ammonia-Free can be used with Colorinsider� permanent color to adjust color formulations or mix with ColorInisder� clear to make pastels on pre-lightened hair. When used with ColorInsider� color formulas, Boosters will cool/drab a formula, or create additional intensity and brightness. Available in Blue, Orange, Yellow and Red.

COLORINSIDER is mixed in a 1:1 ratio of COLORINSIDER Precision Permanent Color to COLORINSIDER Oil-Cream Developer
COLORINSIDER Color must be mixed with the dedicated Oil-Cream Developer. As the developer and color have been specifically formulated to work together, COLORINSIDER will not perform as expected with another developer
PRO TIP:
The COLORINSDER Oil-Cream Developer has an exceptionally rich and dense consistency, specifically optimised for precise application. In order to make extracting the cream easier, store the bottle upside down using the COLORINSIDER helix once the developer is half-used.

-adjust color formulations
-create intensity and brightness