Which pair represents common categories of chemical relaxers?

Which pair represents common categories of chemical relaxers?

• A. Sodium hydroxide
• B. Calcium hydroxide
• C. Ammonium Thioglycolate
• D. Sodium hydroxide and Calcium hydroxide

Answer: (D)

Chemical relaxers are categorized by the active alkaline ingredient used to break and re-form the hair’s bonds. The two main categories you’ll encounter are lye-based relaxers, which use sodium hydroxide, and no-lye relaxers, which use calcium hydroxide. These two represent the common pathways for chemical relaxation. Ammonium thioglycolate is a reducing agent used in some perms and relaxer formulations, but it does not define the primary category on its own. So the pair that covers the two primary categories is sodium hydroxide and calcium hydroxide.

Chemical relaxers are categorized by the active alkaline ingredient used to break and re-form the hair’s bonds. The two main categories you’ll encounter are lye-based relaxers, which use sodium hydroxide, and no-lye relaxers, which use calcium hydroxide. These two represent the common pathways for chemical relaxation. Ammonium thioglycolate is a reducing agent used in some perms and relaxer formulations, but it does not define the primary category on its own. So the pair that covers the two primary categories is sodium hydroxide and calcium hydroxide.