What coloring method is best described as achieving color on previously colored hair to enhance its appearance?

The method best described as achieving color on previously colored hair to enhance its appearance is glazing. Glazing is a technique that involves applying a sheer color coat or gloss over existing hair color. This process is primarily used to improve the tone and shine of the hair, often softening the overall look or adding depth and richness to the color. It serves to refresh and enliven the hair, making previously colored strands appear more vibrant and healthy.

In the context of color correction or enhancement, glazing allows for adjusted hues, helping to combat unwanted tones and providing a more polished finish. This technique is particularly effective for maintaining the vibrancy of color-treated hair, as it can help extend the life of the color while also improving the hair's overall appearance.

The other methods mentioned do not specifically target enhancing the appearance of previously colored hair in the same way that glazing does. Gray reduction focuses on minimizing gray hairs, fur light refers to a technique that lightens the hair while creating texture, and minking involves a specific way of coloring that creates a dimensional look but is not focused solely on enhancing already colored hair.