Title: Perform patch/predisposition test to determine sensitivity to color.
Course: Master Barber I (Two-year Program) (19002-2YI) > Section: Lightening and Coloring Hair

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.

Process/Skill Questions:

- Which hair coloring categories require a patch/predisposition test?
- What are the signs of an allergic reaction?