Skin is considered dry if it?

Skin is considered dry when it does not produce enough oil. This condition occurs when the sebaceous glands produce insufficient sebum, which is the natural oil that helps to lubricate and protect the skin. Adequate oil levels are essential for maintaining the skin’s moisture balance, as oil forms a protective barrier that prevents water loss. When the skin lacks oil, it can lead to a tight, scaly, or flaky appearance, and may also feel uncomfortable or itchy.

The other options describe different skin conditions or characteristics. Excess oil production typically relates to oily skin, which is characterized by an overactive sebaceous gland, not dryness. Lacking impurities does not necessarily correlate to a skin type classification, and rough texture can occur with various skin types, including dry, but it alone is not sufficient to classify skin as dry without considering oil production levels. Understanding these aspects of skin health can help estheticians recommend appropriate treatments and products for clients.