Moroccanoil Oxidative Cream Developers are enriched with argan oil to achieve optimal color results* and conditioning benefits when working with Color Calypso Cream, Color Rhapsody, Color Rhapsody High Lift, Color Infusion, and Blonde Voyage. Color Calypso Demi-Permanent Gloss Activator is specially formulated to be used exclusively with Color Calypso Gloss for enhanced performance. A preliminary patch test should always be performed to determine whether or not a special sensitivity exists. For complete safety test instructions and warnings, please refer to the product packaging.