Why create the "Lasers and apparented technologies" collection? Written by experimented doctors with a perfect knowledge of laser and/or apparented devices, this new collection was initiated by the book Les lasers en dermatologie, published under the lead of the Laser Croup of the French Dermatology Society. In this collection, we develop, around a therapeutic indication, all the laser and apparented technologies, while bringing both practical and exhaustive information on each topic. Facial Rejuvenation enables a general overview on specific subjects. It constitutes a useful tool which offers information allowing the reader to progress, always from an ethical perspective, and to provide a global medical and esthetical treatment. Laser and energy based treatments are the angular stone of cutaneous facial ageing management. This book updates our knowledge on different laser and apparented technologies, such as pulsed lights, LED, radiofrequency, ultrasounds, as well as on cosmetics, injections and their eventual interactions. Moreover, it details the evaluation methods of their effects on skin along with the particularities of treating African, Asian and Mediterranean skin. Facial Rejuvenation could not have been completed without the international and French authors who participated by sharing their knowledge, and contributed to each chapter with their attention to detail and their qualitative expertise. We now let it in your hands, so that it may pass along its experience and encourage you to question, progress and offer our patients the best of laser, lights and energy based devices.