Matrix COLORINSIDER Oil Cream Developer - 30 Volume / 9%

What is this product? Matrix COLORINSDER Oil Cream Developer has an exceptionally rich and dense consistency specifically optimized for precise application. More info: In order to make extracting the cream easier store the bottle upside down using the COLORINSIDER helix once the developer is half-used. COLORINSIDER is mixed in a 1:1 ratio of COLORINSIDER Precision Permanent Color to COLORINSIDER Oil-Cream Developer.