What technique is used to change the hair’s texture permanently?

The technique that is used to change the hair’s texture permanently is waving. This method involves the use of chemical solutions and heat to alter the hair’s natural structure, resulting in waves or curls that can last for an extended period.

When hair is waved, the chemical process breaks down the disulfide bonds in the hair shaft and re-forms them in a new shape, which effectively changes the hair’s texture from straight to wavy or curly. This transformation is often referred to as a perm, short for permanent wave, and it allows for a variety of styles and textures.

Other techniques listed are distinct in their functions. Coloring involves adding pigments to the hair, which does not affect its structural integrity or texture. Relaxing, on the other hand, is designed to make naturally curly or wavy hair straighter rather than create waves. Cutting simply reduces the length of the hair without altering its internal structure or texture. Each technique has its specific purpose, but for permanently changing the hair's texture to create waves, waving is the correct method.