Silver nanoparticles as a safe preservative for use in cosmetics.

@article{Kokura2010SilverNA,
  title={Silver nanoparticles as a safe preservative for use in cosmetics.},
  author={Satoshi Kokura and Osamu Handa and Tomohisa Takagi and Takeshi Ishikawa and Yusuke Naito and Toshikazu Yoshikawa},
  journal={Nanomedicine : nanotechnology, biology, and medicine},
  year={2010},
  volume={6 4},
  pages={570-4}
}
Concern is continuously raised regarding the safety of preservatives, which are crucial in most cosmetic preparations. The antimicrobial effects of silver (Ag) are well recognized; however, Ag has some limitations as a preservative, such as its interference with salts. In this study, we investigated the effects of recently synthesized Ag nanoparticles on microorganisms, the permeability of Ag nanoparticles in human skin, and the cytotoxicity of Ag nanoparticles in human keratinocytes under… CONTINUE READING
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