Clinical Guide to Sunscreens and Photoprotection PDF

Preface

Over the last 20 years, significant advances have been made in the understanding of the biologic and clinical effects of ultraviolet (UV) radiation, including erythema, delayed tanning, photoimmunosuppression, photoaging, and photocarcinogenesis. Furthermore, better appreciation of the biologic and clinical effects of different spectra of UV radiation has also been achieved.

Together with the increased knowledge about the effects of UV, advances in photoprotection have occurred. While sunscreen has been in use since the late 1920s, new filters and formulations that provide final products with excellent cosmesis and broadspectrum photostable UVB/UVA protection are now available. Protective effects of sunscreens are better understood, and active research on new and more effective UV filters and on oral photoprotective agents is ongoing. This has prompted worldwide regulatory activity covering the use of novel sun protective chemicals and appropriate labeling of products for increased consumer awareness. It is now recognized that clothing, window glass, contact lenses, and sunglasses are an integral part of photoprotection, affording physical protection to supplement the use of topical sunscreens. Current areas of research in photoprotection include novel delivery systems, topical antioxidants, and technology to simulate a tan without sunlight. General public understanding of the many novel photoprotection alternatives is indispensable to communicating a positive educational message to patients.

This book is designed for practicing dermatologists, dermatology trainees, physicians, and scientists interested in photoprotection. It covers the history of photoprotection, UV filters and other photoprotective agents, physical photoprotection, and public education in photoprotection. Each chapter, which starts with a synopsis, is written by authors who have made significant contributions to the topic. We hope that the readers will find this book an informative and practical reference on this important subject.