Skin Science Institute Basic Exit Practice Exam

The primary function of occlusive products is to reduce transepidermal water loss (TEWL). These products create a barrier on the skin's surface that helps prevent moisture from escaping, thus maintaining hydration levels within the skin. This is particularly beneficial for individuals with dry or dehydrated skin, as occlusives can lock in moisture that might otherwise evaporate. By forming this protective layer, occlusives also support the skin's natural barrier function, enhancing its overall integrity and resilience.

Understanding the role of occlusives is important for effective skincare regimens, especially for those dealing with conditions related to dryness or impaired barrier function.