Which process is associated with enhancing the natural hair color while introducing varied tones?

Tone on Tone is the process that enhances the natural hair color while introducing varied tones. This technique involves using a semi-permanent color that adds subtle highlights or lowlights to the hair without drastically changing the overall color. It works by depositing color onto existing hair, which can enrich the natural base tone and create depth and dimension.

This method is particularly effective for those who seek a more natural look with shifts in hue, as it allows for the blending of colors without harsh contrasts. The result is a multi-dimensional appearance that brings out different shades and reflects light beautifully, enhancing the individual's natural hair color without overwhelming it.

While other techniques may involve similar concepts, they either focus on specific applications or achieve different effects, such as creating shadows or visual texture, without necessarily enhancing the base color in a nuanced way.