Title: Perform patch/predisposition test to determine sensitivity to color.
Course: Cosmetology III (19101-III)

Performance should include

- identifying two areas where the patch/predisposition test can be done
- doing patch/predisposition test 24 to 48 hours before service to determine sensitivity to color
- identifying allergic reaction, if any.

Process/Skill Questions:

- Which hair coloring categories require a patch/predisposition test?
- What are the signs of an allergic reaction?
- Where is the best place to perform the patch/predisposition test?
- When does one perform the patch/predisposition test?