Which vitamin deficiency causes dry skin?
*Vitamin A is one of the essential trace elements for the human body. Vitamin A can promote the synthesis of immune proteins, maintain the normal metabolism of epithelial cells, and promote the synthesis of immunoglobulins. This function is mainly because it participates in the synthesis of glycoproteins, which plays a key role in maintaining or regulating normal immune function. Vitamin A is an essential nutrient for the human body. Vitamin A can maintain the health of the surface of tissues or organs and restore rough skin to normal.
