Which of the following characteristics describes sensitive skin?

Sensitive skin is characterized by its propensity to easily react to various stimuli, which often manifests as redness, irritation, or discomfort. This type of skin is more reactive due to factors such as a compromised skin barrier, genetic predisposition, or environmental influences. Regular signs such as redness and reactions indicate that the skin is sensitive and needs special consideration when it comes to the choice of skincare products.

In contrast, other characteristics do not align with sensitive skin. For instance, highly resistant skin would not frequently display any signs of irritation or redness, while a lack of need for moisturizing suggests that the skin has a healthy barrier function, which is typically not the case with sensitive skin. Lastly, being able to tolerate all skincare products is not applicable, as sensitive skin usually requires careful selection of products to avoid adverse reactions.