How Much Developer Do You Need for Hair Dye?

How Much Developer Do You Need for Hair Dye?

In most cases, stylists mix equal amounts of developer and hair pigment. For example, if 2 ounces of pigment is used, 2 ounces of developer is added to activate the pigment. Sometimes, such as in high-lift applications, a higher ratio of developer to color is used.

For most applications, 4 ounces of hair color, consisting of 2 ounces of developer combined with 2 ounces of pigment, is enough to color all the hair. However, it may take 6 to 8 ounces to color hair that is particularly thick or long. Since hair color is only good for about an hour, it's usually mixed as needed rather than all at once.