Patch testing for sensitivity helps to identify what before a service?

• A. The price of the service
• B. The duration of the service
• C. Patch testing for sensitivity helps to identify potential allergic reactions to products
• D. The preferred color of product

Answer: (C)

Patch testing is a safety step used to detect potential allergic reactions to products before a service. By applying tiny amounts of products to a small patch of skin and observing it for 24 to 48 hours, you can see if the client might react with redness, itching, or swelling. This helps prevent allergic contact dermatitis or other adverse reactions during the salon service by identifying which products are safe for that individual. If a reaction occurs, those products can be avoided or alternatives found, and the service can be adjusted accordingly. The other options—price, how long the service takes, or the preferred color—do not relate to a person’s sensitivity or potential allergies, so they aren’t what patch testing addresses.