Matrix Color Insider 30 Volume 9% Developer 32 oz

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.