Detailed answer

Dry skin can occur due to various factors. The primary cause is a loss of moisture from the skin, which can be attributed to external factors like dry climate, low humidity, harsh soaps, excessive bathing or showering, and hot water. Internal factors such as aging, genetics, certain medical conditions, and hormonal changes may also contribute to dry skin. Additionally, disruptions in the skin barrier function can lead to increased water loss, resulting in dryness. This barrier can be compromised by factors like harsh chemicals, excessive exfoliation, and certain medications. It's important to properly hydrate and protect the skin to prevent dryness and maintain healthy skin barrier function.