What is a primary characteristic of sensitive skin?

Sensitive skin is primarily characterized by its reactiveness to various products and environmental conditions. Individuals with sensitive skin often experience irritation, redness, itching, or a burning sensation when exposed to certain substances, such as fragrances, alcohols, or harsh chemicals. This heightened sensitivity results from a compromised skin barrier, leading to a lower tolerance for irritants that may not affect individuals with more resilient skin types.

The option related to high oil production does not apply to sensitive skin, as sensitivity can occur across different skin types, including dry or combination skin. Similarly, resilience to environmental factors does not align with sensitive skin characteristics, since sensitive skin typically shows more susceptibility to factors such as temperature changes, pollution, or skincare ingredients. Lastly, consistent moisture retention is not a hallmark of sensitive skin, which often struggles with hydration due to its compromised barrier. Therefore, the ability to react strongly to products and environmental conditions defines the sensitivity rather than the other options.