How does chemical composition differ between relaxers and perms?

The correct choice highlights a fundamental aspect of the purpose and chemical composition of relaxers and perms. Relaxers are specifically designed to alter the natural structure of curly or wavy hair, making it straighter. This process typically involves breaking down the disulfide bonds in the hair, ultimately resulting in a smoother, more frizz-free finish.

Conversely, perms are formulated to create curls or waves in the hair by reshaping these disulfide bonds through a different chemical process. The composition of the chemicals in perms is intended to facilitate this transformation to create curls, whereas relaxers have a composition that effectively softens and removes the coil from the hair.

Understanding these distinctions helps clarify why relaxers and perms are used for opposing effects on hair texture. The correct option succinctly encapsulates the core difference in the function of these chemical treatments, directly correlating with their respective designs and outcomes.