Antioxidants are molecules that facilitate the oxidation of other molecules. It also deals with chemical structures. Antioxidants and their application to chemistry and other related fields is an emerging field of research. From theories to research to practical applications, case studies related to all contemporary topics of relevance to this field have been included in this book. It aims to shed light on the different chemical processes and its dynamics so as to provide a holistic approach to the discipline and its branches. Scientists and students actively engaged in this field will find this book full of crucial and unexplored concepts. For all those who are interested in antioxidants, this book can prove to be an essential guide. In this text, using case studies and examples, constant effort has been made to make the understanding of the difficult concepts of this field as easy and informative as possible, for the readers.