Imaging of Zinc Oxide Nanoparticle Penetration in Human Skin In Vitro and In Vivo

    November 2008 in “ Journal of biomedical optics ”
    Andrei V. Zvyagin, Xin Zhao, Audrey Gierden … Michael S. Roberts
    Studysummary This study found that ZnO nanoparticles in topical skin products do not penetrate beyond the outer skin layers in humans, suggesting minimal safety concerns for subdermal absorption.
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