What is a common issue when using dye on very light hair?

When using dye on very light hair, one common issue that can arise is that the hair may end up turning green. This typically occurs when a dye containing ash tones is applied to pre-lightened or very light hair, particularly if the underlying pigments in the hair are not fully neutralized. Light hair often has underlying warm tones, such as yellow or golden pigments. If a dye that has an ash or cool tone is applied without proper color theory considerations, it can sometimes lead to an undesirable greenish hue.

This phenomenon is particularly prevalent when working with light blonde hair, as the cool tones from the dye can mix with the warm underlying pigments, leading to that greenish tint. Hair professionals need to understand how to balance tones and may consider using a color filler or selecting warm dyes to avoid this effect.

Other options regarding the hair not holding color, becoming too thick, or fading immediately are less common issues associated with very light hair when using dye. The interaction of color pigments is the primary concern when it comes to achieving the desired result with very light hair. Understanding the color wheel and how different shades interact is crucial for a successful coloring process.