Which phase is dedicated to the chemical reaction that breaks and reforms bonds in the hair?

Which phase is dedicated to the chemical reaction that breaks and reforms bonds in the hair?

• A. Physical phase
• B. Chemical phase
• C. Both phases
• D. No phase

Answer: (B)

Breaking and reforming hair bonds is a chemical change that happens during the chemical phase. In chemical texturing, a reducing agent breaks the disulfide bonds so the hair can be reshaped, and then a neutralizer re-forms those bonds in the new configuration to lock in the texture. The physical phase, by contrast, involves wrapping, arranging, and manipulating the hair without triggering chemical bond changes. So the phase dedicated to that bond-breaking and bond-forming reaction is the chemical phase.

Breaking and reforming hair bonds is a chemical change that happens during the chemical phase. In chemical texturing, a reducing agent breaks the disulfide bonds so the hair can be reshaped, and then a neutralizer re-forms those bonds in the new configuration to lock in the texture. The physical phase, by contrast, involves wrapping, arranging, and manipulating the hair without triggering chemical bond changes. So the phase dedicated to that bond-breaking and bond-forming reaction is the chemical phase.