The ratio of developer to hair dye is crucial for achieving desired color results. A 20 volume developer, containing a 6% concentration of hydrogen peroxide, is a standard choice for many coloring processes. Typically, a 1:1 ratio of hair color to developer is recommended, meaning equal parts of color and 20 volume developer are mixed. However, some manufacturers or specific coloring techniques may require different ratios, so always consult the product instructions. For example, high-lift colors or applications seeking significant lightening might call for a 1:2 ratio, using twice as much developer as color.
Correctly proportioning developer and hair color is essential for predictable and satisfactory results. Using the proper ratio ensures the color develops correctly, achieving the target shade while minimizing damage. Historically, achieving consistent color results was challenging. Modern developers, with standardized concentrations like 20 volume, have greatly improved the predictability and safety of hair coloring. Understanding the developer’s role in the coloring process allows for greater control over the final outcome, enabling users to achieve the desired lift and deposit of color effectively.
