In this podcast, Raja Sivamani, M.D., M.S., C.A.T., Associate Professor of Clinical Dermatology at UC Davis, talks about the skin, our largest organ, and the many conditions that impact skin health.   As an experienced, board-certified dermatologist, Dr. Sivamani has devoted his career to the study and treatment of skin, with a particular focus on diseases that affect the skin. Sivamani discusses how he got into the field of dermatology. He elaborates on sebaceous gland disease and bioengineering adaptations for the field of dermatology.   Sivamani provides an overview of his practice, discussing tools and techniques, including the various kinds of lighting that they use to observe their patients. He explains ultraviolet light and talks about the benefits of using various types of lighting. He details how a Wood's lamp works and how it can help with an examination, using light to help doctors find bacterial or fungal skin infections, as well as discovering/viewing skin pigment disorders, and additional conditions. Sivamani goes into detail about glands and pores and outlines certain skin conditions such as eczema and additional types of dermatitis that can irritate the skin, creating dry or itchy patches, or producing rashes, and/or possibly some swelling.    Further, Sivamani provides more information about bacteria function, highlighting probiotics and the microbiome. And he explains the therapeutic use of prebiotics, probiotics, and postbiotics for the skin and its many conditions.