What technique involves gradually increasing the length of hair without noticeable lines, gaps, or steps?

The technique that involves gradually increasing the length of hair without noticeable lines, gaps, or steps is graduation. This method is used to create a smooth transition from shorter to longer lengths that blends seamlessly. Graduation is often employed in styles that require an even, circular shape around the head, providing fullness and body without harsh lines.

In practice, graduation is achieved by cutting the hair at different lengths while maintaining a consistent technique throughout the process. This results in a graduated effect where the hair looks naturally flowing and volumized. This skill is particularly important in providing both structure and softness to various hairstyles.

While layering focuses more on cutting the hair to different lengths to create dimension and volume, tapering is primarily about gradually shortening the hair, particularly around the sides and back. Texturizing involves altering the shape and fullness of the hair without necessarily changing its length significantly. Although these techniques serve different purposes, graduation is specifically characterized by the gradual buildup of hair length, which is key to achieving a polished look without harsh transitions.