What is the main characteristic of skin type 4 (IV)?

Skin type 4, also known as type IV, is primarily characterized by its thick and resilient nature. This skin type typically displays a robust texture, often having a well-balanced structure that can withstand various environmental factors. Individuals with this skin type usually have a higher level of sebum production, contributing to its resilience and making it less prone to moisture loss compared to drier skin types. The thick epidermis provides an effective barrier that helps protect against irritants and environmental stressors, which is a distinguishing feature of this classification.

The other options relate to characteristics that are not typically associated with skin type 4. High sensitivity is more indicative of a different skin type, which reacts more easily to products and environmental factors. Excessive dryness is another characteristic associated with skin types that lack sufficient oil and moisture, contrasting with the well-hydrated and resilient nature of type IV. Lastly, fine and sensitive skin is often found in lighter skin types, particularly types with less oil and more susceptibility to irritation. Understanding these distinctions is crucial for effective skin analysis and treatment recommendations.