In most hair color applications, colorists mix an equal amount of developer and color together. This formula is often referred to in parts or as a ratio. For example, the ratio 1 to 1 means to mix one part color with one part developer.
When colorists want to lighten hair by several shades, a service called high-lift color, they often add more developer to ensure maximum lift. A common formula used consists of one part color to two parts developer. Stylists rarely go over the 1 to 2 formula because adding too much developer changes the consistency of the hair color and doesn't offer any real advantages.Learn More
The amount of developer added to hair needs to be equivalent to the amount of color used. This measurement ratio applies no matter the scale or variety of products being used. Carefully adding the right volume is important for getting the desired results.Full Answer >
The process for mixing hair dye and developer typically requires a 1:1, 1:1.5 or 1:2 ratio of dye to developer. The specific mixture depends on the product.Full Answer >
Removing hair dye with developer is best done by a trained stylist, since it removes the natural melanin in addition to dye from your hair and can leave your hair brassy and brittle, but it can be done at home with care. Developer is a peroxide solution that can be bought in four strengths at a beauty supply store or from an online retailer. Choosing the right developer, no more than 20-volume strength, is important to your hair health.Full Answer >
Schwarzkopf 5-3 light-matte-brown, permanent hair color requires a color/developer ration of 1:1 by volume. There are four levels of Igora Royal developer for use depending on the level of color desired, with percentages of 3, 6, 9 and 12.Full Answer >