What does alipoid/alipidic skin mean?

Alipoid or lipidic skin refers to skin that is characterized by a deficiency or absence of lipids, which are essential fats that help maintain the skin's barrier function and hydration. When skin lacks these lipids, it may become dry, rough, and more prone to irritation and sensitivity.

This terminology is derived from the Greek word 'lipos,' meaning fat or grease. In this context, the correct understanding emphasizes that alipidic skin has minimal or no lipids, leading to potential issues with moisture retention and the overall health of the skin. The other options imply conditions related to excess oils, fatty acids, or hydration, which do not correctly define the characteristic of alipoid skin.