Title: Select a straightening or chemical relaxer product.
Course: Cosmetology II (19101-II) > Section: Performing Chemical Relaxing and Straightening

Selection should include knowledge of

- hydroxide relaxer
- ammonium thioglycolate relaxer (i.e., thio)
- keratin straightening and smoothing treatment
- Japanese thermal straightening.

Process/Skill Questions:

- What is the difference between a virgin relaxer and a retouch relaxer?
- What are normalizing solutions? Why are they used?
- Why should one not mix sodium hydroxide with ammonium thioglycolate?