Can I Use 30 Volume Developer With Black Hair Dye? How to apply Vol 30?
Can I Use 30 Volume Developer With Black Hair Dye? If you want to get a lighter color than the natural one, you can use a 20-volume developer. It contains 6% peroxide and lightens your hair by 1-2 levels. The 20-volume developer is usually used for permanent and semi-permanent hair coloring and can produce a … Read more