What is the purpose of patch testing in beauty therapy?

• A. To determine the client’s skin tone
• B. To estimate session duration
• C. To identify potential allergic reactions to products
• D. To train staff in product usage

Answer: (C)

Patch testing is used to check whether a client might have an allergic reaction to cosmetic or beauty products before using them in treatment. By applying a small amount of the product to a discreet skin area and leaving it in place for about 24 to 48 hours, you can watch for signs such as redness, itching, swelling, or blisters. If a reaction occurs, the product is avoided to prevent adverse effects during the actual service. This safety step protects the client and helps you make informed choices about what products to use. It’s not about identifying skin tone, estimating how long a session will take, or training staff—those goals aren’t addressed by patch testing.