Identify straightening and chemical relaxing products.

Identification could include differentiating among the various types of straightening services, such as

• keratin straightening/smoothing treatments
• Japanese thermal straightening
• ammonium thioglycolate relaxer (i.e., thio)
• hydroxide relaxers.

Process/Skill Questions:

• What are the advantages and disadvantages of using current straighteners?
• What products can be used with other straightening services?