👉 Hyalophagia is a term used in medicine to describe an abnormality of the skin caused by a lack of collagen, which is a protein found in the dermis layer of the skin. It can be caused by various conditions such as psoriasis, eczema, or certain medications. In this context, hyalophagia refers to the condition where the skin becomes rough and dry, often with patches of scaly skin that may appear on the face, neck, chest,