Detailed answer

Ichthyosis vulgaris is a genetic disorder characterized by the buildup of dead skin cells on the surface of the skin, leading to dry and scaly skin. This condition affects the production of a protein called filaggrin, which helps to create a protective barrier on the skin. Without enough filaggrin, the skin becomes dry, rough, and prone to cracking. Individuals with ichthyosis vulgaris often experience excessive dryness, flaking, itching, and tightness of the skin, especially on the arms, legs, and trunk. It is important for people with ichthyosis vulgaris to follow a gentle skincare routine and use moisturizers regularly to help alleviate dryness and manage symptoms.