What is the purpose of analyzing a client's skin before a facial?

Analyzing the skin before a facial lets the esthetician/cosmetologist identify the client's skin type and condition (for example, oily, dry, combination, sensitive) and detect any contraindications — such as active infection, irritation, sunburn, or suspicious lesions — that would make a service unsafe or require referral to a physician. The analysis guides product and technique choices for a safe, appropriate service. Skipping it risks harm or poor results. As with hair, careful analysis and recognizing contraindications before a skin service is essential exam content.