When coloring hair, what aspect is important to ensure full coverage and even results?

When coloring hair, using a color filler is crucial for ensuring full coverage and even results, especially when working with darker shades or when transitioning from a lighter color to a darker one. Color fillers help to replace the underlying pigments that may have been stripped during the lightening process. These fillers can help create a more uniform base for the new color, resulting in a more consistent application and reduced risk of unevenness or patchiness.

In addition, color fillers can improve the overall vibrancy and longevity of the final color, as they assist in achieving a richer and more balanced hue by pre-conditioning the hair. This is particularly important for those attempting to achieve dramatic color changes or when working with porous hair that can absorb dye inconsistently.

While working in small sections and using the right tools are important practices in the coloring process, they do not directly address the issue of color absorption and the underlying pigment that fillers do. Therefore, employing a color filler is a critical step in achieving seamless color results.