The concept of beauty and, therefore, cosmetics has always existed in life. The history of these concepts is as old as humanity. In ancient times, plants and herbs were used for better appearance and personal care. Over time, as the demand for people to look beautiful and stay young increased, the cosmetic industry and cosmetic dermatology developed and are now continuously evolving fields. Cosmetic procedures are nonsurgical treatments performed to enhance the appearance of healthy individuals' skin. This book aims to provide readers with a comprehensive review of cosmetic applications, the industry, products, trends, and quality control. It is created by experts in various fields and is intended to extend the knowledge about cosmetics, cosmetic procedures, and the industry.