Skin physiology is the study of the structure and function of the skin, including the roles of various cells, proteins, and molecules in maintaining skin health and homeostasis. This field of research explores topics such as skin barrier function, hydration and moisture balance, immune responses in the skin, and the effects of aging on skin structure and function. Researchers in this area may investigate how different factors, such as environmental stressors or genetic factors, impact skin physiology and contribute to skin conditions such as dermatitis, eczema, or psoriasis. Additionally, skin physiology research may also focus on the development of skincare products and treatments that can enhance skin health and address specific skin concerns.