Which lines are used to remove weight to create graduated or layered haircuts?

Vertical lines are essential in haircutting, especially when creating graduated or layered styles. These lines allow for precise removal of weight and help in achieving a more structured haircut. When vertical lines are used, they assist in lifting the hair upwards, which in turn creates volume and enhances the layering effect. This technique is particularly effective in sculpting the overall shape and contour of the haircut.

In contrast, diagonal lines tend to create movement and are often used for texturizing or softening edges rather than removing weight. Horizontal lines can create a solid line and tend to make hair look heavier, which is not ideal for graduated styles that aim for lightness. Beveled lines focus more on the transition between lengths rather than directly removing bulk or weight in the hair, thus are less effective in achieving the desired layered haircut. Therefore, the use of vertical lines is key in crafting those graduated layers.