Support for the Safe Use of Zinc Oxide Nanoparticle Sunscreens: Lack of Skin Penetration or Cellular Toxicity after Repeated Application in Volunteers.
J Invest Dermatol. 2019 Feb;139(2):308-315. doi: 10.1016/j.jid.2018.08.024. Epub 2018 Nov 15.
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PMID: 30448212
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Clinical Trial.