What type of haircut technique involves elevating the hair at a 90-degree angle?

The technique that involves elevating the hair at a 90-degree angle is known as layering. This method allows for the creation of layers in the hair, resulting in added volume and movement. By lifting the hair to this angle, the stylist can achieve a more textured look and enhance the overall shape of the haircut. Layering is particularly effective for thinning out thick hair or giving fine hair more body, as it helps in distributing weight evenly throughout the hairstyle.

Texturizing typically refers to methods used to alter the texture of the hair, usually focusing on thinning or removing bulk rather than creating distinct layers. Blunt cutting involves cutting the hair straight across at the same length, while graduating refers to a technique that uses a slightly less than 90-degree angle to create a more graduated look, providing a mild layering effect but not the full layering achieved at a 90-degree elevation. Thus, the correct answer aligns perfectly with the technique associated with a 90-degree angle elevation, emphasizing the unique aspects of layering in hairstyling.