What type of chemical changes the structure of the hair by breaking and reforming bonds?

What type of chemical changes the structure of the hair by breaking and reforming bonds?

• A. Physical texture service
• B. Chemical texture service
• C. Thermal straightening
• D. Mechanical conditioning

Answer: (B)

Chemically altering hair texture means breaking and re-forming the bonds in the cortex to create a new shape. This is what chemical texture services do, using a reducing agent to break the bonds and a neutralizer to re-form them in a new configuration. That lasting change distinguishes this from other methods. A physical texture service uses tools to shape hair without chemical changes, thermal straightening relies on heat to temporarily loosen or rearrange bonds rather than permanently breaking and re-forming them, and mechanical conditioning improves feel without changing the hair’s chemical structure.

Chemically altering hair texture means breaking and re-forming the bonds in the cortex to create a new shape. This is what chemical texture services do, using a reducing agent to break the bonds and a neutralizer to re-form them in a new configuration. That lasting change distinguishes this from other methods. A physical texture service uses tools to shape hair without chemical changes, thermal straightening relies on heat to temporarily loosen or rearrange bonds rather than permanently breaking and re-forming them, and mechanical conditioning improves feel without changing the hair’s chemical structure.