Intelligent color for incomparably beautiful color results and real color experts. Mixing ratio: 1 part color : 1 part Topchic Cream Developer Lotion. For the Special Lift shades, the mixing ratio is: 1 part color : 2 parts Topchic Cream Developer Lotion. Content 60 ml.100% gray coverageultimate durabilityexcellent even resultsoptimal protection