Question

ch 15 pre - service chemical texture guidelines quiz
question 1 of 5
1 point
which of the following is a step performed in a strand test? (select all that apply.)
select the correct response(s)
select three test areas on the head.
immerse at least 20 strands of hair in the solution for 30 minutes.
run a neutralizing shampoo (hydroxide relaxer) or neutralizer (thio relaxer) through the test strands.
check to see if the hair color lightens.

Explanation:

In a hair strand - test for chemical texture services, selecting test areas on the head helps to assess how different parts of the hair will react. Running a neutralizing shampoo or neutralizer through the test strands is a crucial step to stop the chemical reaction. Immersing a large number of strands for a set time is also a common procedure. Hair color lightening is not a typical step in a strand - test for chemical texture services.

Answer:

Select three test areas on the head.
Immerse at least 20 strands of hair in the solution for 30 minutes.
Run a neutralizing shampoo (hydroxide relaxer) or neutralizer (thio relaxer) through the test strands.