What is meant by the term "all-over color"?

The term "all-over color" refers to a uniform hair color application over the entire head. This technique involves applying a single, consistent shade from the roots to the ends, ensuring that the hair maintains an even and cohesive hue across all sections. It is commonly used for techniques like color refreshing, complete color changes, or maintaining the current color while providing a vibrancy boost.

This approach contrasts with other methods that involve variation in color, such as highlighting or balayage, where colors are applied selectively rather than uniformly. Highlights would introduce lighter strands within the hair, while balayage and ombre techniques focus on graduated color application, creating depth and dimension rather than an even overall shade.