This book offers an overview of the science of cosmetics and the formulation of nanosized cosmetic products including fabrication, characterization of nanocosmetics, major challenges in the safe applications, regulatory aspects, and commercialization on a large scale. The chapters provide understanding of the interaction of nanocarriers with skin and hair, different nanocosmetic products in the present situation, applications as well as disadvantageous toxicity associated with nanocosmetics, regulatory prospects, and future perspectives. Features: Provide an explicit account on vital aspects of various nanocosmetics drug delivery approaches, thereby providing a next-generation cosmetic product Bring together the novel applications of nanocosmetics approaches in the biological milieu Explores preparation, applications, toxicity, and regulatory prospects Includes a dedicated chapter on Niosomal drug-delivery systems in cosmetics Discusses the perspectives of the technologies explored so far based upon the findings outlined in highly organized tables, illustrative figures, and flow charts This book is aimed at researchers and professionals in nanomedicine, pharmaceuticals, biotechnology, and the health sector.