Relaxers that contain two components and must be mixed immediately prior to use are _____.

_____ minimizes stress and tension on the hair.

Which chemical bonds, also known as end bonds, join amino acids together, end-to-end in long chains, to form a polypeptide chain?

What is the main active ingredient in true acid and acid-balanced waving lotions?

In a _____, the hair is wrapped at an angle other than perpendicular to the length of the rod which causes the hair to spiral along the length of the rod.

_____ waves are perms using an ingredient that does not evaporate as readily as ammonia, so that there is very little odor associated with their use.

A combination of a thio relaxer and a thio permanent wrapped on large rods is a _____.

What chemical side bonds are formed when two sulfur-type chains are joined together?

Which layer of hair is the innermost layer of the hair, and often called the pith or core of the hair?

What is something you enjoyed during this course and how can I make it better?