California Cosmetology Written ExamHair RemovalHard
A new client with no known history of allergies is scheduled for a full-leg wax using a brand-new sugar-based wax product the salon has never used before. What should the cosmetologist do first to reduce the risk of an allergic reaction?
- AAsk the client to take an over-the-counter antihistamine immediately before the service
- BIncrease the wax temperature slightly to help open the skin's pores before application
- CApply the full-strength wax directly to the client's eyebrows as a trial area
- DPerform a small patch test on an inconspicuous area of skin at least 24 hours before the scheduled service
Show answer & explanationAnswer & explanation
Correct answer: D. Perform a small patch test on an inconspicuous area of skin at least 24 hours before the scheduled service
Whenever a new product is used, especially on a client without a known reaction history, a small patch test should be applied to an inconspicuous area and monitored for at least 24 hours to check for redness, itching, or irritation before performing the full service. This protects the client from a widespread allergic reaction.
Why the other options are wrong
- A. Pre-medicating with antihistamines does not identify or prevent an allergic reaction risk properly.
- B. Increasing wax temperature increases burn risk and does not test for allergies.
- C. The eyebrow area is sensitive and visible, making it a poor and risky trial location.
Patch Test Before Waxing
A small test application of a new wax or product on an inconspicuous skin area, monitored for at least 24 hours, to check for allergic reactions before performing a full service.
- Used when introducing new products or on new clients
- Applied to inconspicuous skin area, not sensitive facial zones
- Monitored for redness, itching, swelling before proceeding
Memory trick: 'Test small before you go tall (full service)'