Abstract
Nanotechnology has proved to be an effective technology in the cosmetic industry, as it has allowed creation of better formulations with enhanced stability, efficacy as well as safety. Nanocosmetics make use of the nanoscale of delivery systems namely liposomes, solid lipid nanoparticles, nanostructured lipid carriers, and polymeric nanoparticles to increase the bioavailability, controlled release and protection of active ingredients. In 2019, it has made great strides in the implementation of nanotechnology in different cosmetic products such as sunscreens, oral care formulations, fragrances, and moisturizers. These nano-enabled systems have been found to be superior in their ultraviolet protection, skin hydration, and longevity of duration of fragrance release, antimicrobial and antioxidant. Besides this, in vitro and in vivo experiments show that designed nanocarriers are well-compatible with skin and have low cytotoxicity. Although these benefits exist, there are long-term safety, environmental, and regulatory standardization issues. This review identifies the current developments in the field of nanocosmetic formulations, attributes the objective advantages and safety issues of such formulations, and the necessity to undertake further research to aid in the responsible and sustainable development of nanotechnology-based cosmetic products.