Hair Color Mixing Ratios by Brand: 1:1, 1:1.5 and 1:2 Explained
Most permanent hair color lines mix 1 part color to 1 part developer, but not all: Pravana ChromaSilk and Rusk Deepshine call for 1:1.5, Framesi Framcolor 2001 calls for 1:2, and most high-lift series use 1:2. Follow the brand in your bowl, not the one you used on the last …