Which of the following topics is included in the required curriculum for estheticians?

The correct answer is skin biology, as it is a fundamental component of the curriculum for estheticians. Understanding skin biology is crucial because it provides the necessary knowledge about the structure, function, and health of the skin. This subject covers aspects like skin types, skin conditions, and the effects of various treatments on the skin. Such understanding is essential for estheticians to effectively assess clients’ skin, recommend treatments and products, and execute procedures safely.

In contrast, while business management and advertising techniques are relevant skills for running a practice, they do not encompass the core technical knowledge needed for esthetics. Fashion design, although creative and potentially useful in a broader beauty context, is not a requirement in the esthetic curriculum, which primarily focuses on skin care techniques and health.