Understanding Patch Tests for Hair Coloring

Where is an appropriate area to perform a patch test?

• The back of the hand

• On the scalp

• Directly on the area to be colored

• Behind the ear or inside of the elbow

What is the first step in preparing the test area for a patch test?

• Applying the hair color mixture

• Cleansing and drying the area

• Covering the area with a bandage

• Applying a moisturizer

How long should the hair color mixture be left undisturbed on the test area?

• 5 to 10 minutes

• 1 to 2 hours

• 24 to 48 hours

• 12 to 24 hours

What indicates a negative patch test result?

• A slight tingling sensation

• No signs of redness or irritation

• Redness and irritation

• Immediate itching

What should be done if the patch test results are positive?

• Proceed with the color service

• Do not proceed with the service

• Apply a soothing lotion and proceed

• Wait another 24 hours and retest