The role of cosmetic products is rapidly evolving in our society, with their use increasingly seen as an essential contribution to personal wellness. This suggests the necessity of a detailed elucidation of the use of nanoparticles (NPs) in cosmetics. The aim of the present work is to offer a critical and comprehensive review discussing the impact of exploiting nanomaterials in advanced cosmetic formulations, emphasizing the beneficial effects of their extensive use in next-generation products despite a persisting prejudice around the application of nanotechnology in cosmetics. The discussion here includes an interpretation of the data underlying generic information reported on the product labels of formulations already available in the marketplace, information that often lacks details identifying specific components of the product, especially when nanomaterials are employed. The emphasis of this review is mainly focused on skincare because it is believed to be the cosmetics market sector in which the impact of nanotechnology is being seen most significantly. To date, nanotechnology has been demonstrated to improve the performance of cosmetics in a number of different ways: 1) increasing both the entrapment efficiency and dermal penetration of the active ingredient, 2) controlling drug release, 3) enhancing physical stability, 4) improving moisturizing power, and 5) providing better UV protection. Specific attention is paid to the effect of nanoparticles contained in semisolid formulations on skin penetration issues. In light of the emerging concerns about nanoparticle toxicity, an entire section has been devoted to listing detailed examples of nanocosmetic products for which safety has been investigated.

化妆品在我们的社会中的作用正在迅速发展，其使用越来越被视为对个人健康的重要贡献。这表明有必要详细说明纳米粒子 (NPs) 在化妆品中的使用。本工作的目的是提供批判性和全面的评论，讨论在先进化妆品配方中利用纳米材料的影响，强调它们在下一代产品中广泛使用的有益影响，尽管对纳米技术在化妆品中的应用一直存在偏见。此处的讨论包括对市场上已有制剂产品标签上报告的通用信息基础数据的解释，这些信息通常缺乏识别产品特定成分的详细信息，尤其是在使用纳米材料时。本次审查的重点主要集中在护肤品上，因为据信在化妆品市场领域，纳米技术的影响最为显着。迄今为止，纳米技术已被证明可以通过多种不同方式改善化妆品的性能：1) 提高活性成分的包封率和皮肤渗透率，2) 控制药物释放，3) 增强物理稳定性，4) 改善保湿力，和 5) 提供更好的紫外线防护。特别关注半固体制剂中包含的纳米颗粒对皮肤渗透问题的影响。鉴于对纳米颗粒毒性的新关注，