What is a benefit of using pre-wax oil?

Using pre-wax oil is essential in the waxing process because it creates a barrier that protects the skin. This barrier helps to prevent the wax from directly adhering to the skin, which can minimize discomfort during the hair removal process. It also aids in reducing the risk of skin irritation and protects sensitive areas, ensuring a smoother experience for the client. The oil allows the wax to adhere better to the hairs rather than the skin, making the waxing more effective and gentle. While other aspects, such as softening the skin and fragrance enhancement, have their benefits, the primary and most impactful role of pre-wax oil is to serve as a protective barrier, making option B the most accurate answer.