Nanoparticles in cosmetic preparations are found to improve the stability of various cosmetic ingredients such as unsaturated fatty acids, vitamins or antioxidants by encapsulating them; increase the efficacy and tolerance of UV filters on the skin surface; make the product more esthetically pleasing; and enhance the penetration of certain active ingredients to the epidermis.
Nanotechnology involves engineering or creating things at the nanoscale and the length scale of molecules is typically between 1 nm and 100 nm, explained with Russ Walters, Ph.D. of Johnson & Johnson.
Essentially, molecules are put together to make new things.
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