Michigan Esthetician State Board Exam Practice 2026 – Complete Prep Guide

External (Extrinsic) Factors are related to aspects that originate from outside the body and impact skin health and appearance. This includes a variety of environmental and lifestyle influences such as UV radiation, pollution, climate, and even dietary choices.

Understanding that these external factors can cause damage to the skin or contribute to issues like aging and diseases highlights their importance in esthetics. For instance, prolonged exposure to sun can lead to premature aging, while pollution can exacerbate skin conditions such as acne or eczema.

The other options focus on internal factors or classifications that do not directly pertain to the external influences that affect skin quality and health. Skin type classification pertains to the inherent characteristics of an individual's skin, intrinsic body health factors relate to the body’s internal biological conditions, and skin hydration levels are indicators of skin condition rather than external influences. Thus, the choice linking to health factors outside the body accurately captures the essence of external (extrinsic) factors affecting the skin.