How Much Powder Do I Mix With Developer?
The amount of powder you mix with developer depends on the type of hair color or bleach you are using and the desired results. Generally, hair color formulas provide instructions for mixing their product with developer, often in a 1:1 ratio. The higher the volume of developer, the more lift or lightening power it has. It’s important to follow the instructions carefully to achieve the best results and avoid damaging your hair.