This broad spectrum, SPF 30 sunscreen uses non-nano zinc oxide to protect against the sun’s rays. It’s oil-free and claims to aid in minimizing the look of fine lines and wrinkles .
This review analyses the most recent developments in the field of nano-ZnO-bionanocomposite (nZnO-BNC) materials-mainly in the form of films, but also hydrogel or electrospun bandages-from the different preparation techniques to their properties and antibacterial and wound-healing performances.
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Zinc Oxide is better. Zinc is broad spectrum. Titanium is not. That's all you really need to know. For example, I would never use a Titanium Dioxide only sunscreen, but love and trust Zinc Oxide only sunscreens. Otherwise they are similar. Both impart a white cast. Both are pasty..Both reflect and absorb light. • 3 yr. ago. Wiench K, Wohlleben W, Hisgen V, et al. Acute and chronic effects of nano- and non-nano-scale TiO(2) and ZnO particles on mobility and reproduction of the freshwater invertebrate Daphnia magna. Chemosphere. 2009; 76:1356–1365. [Google Scholar] Zinc oxide (ZnO) is a nontoxic semiconductor from the second group with band gap 3.7 eV and high binding energy (60 m eV), large surface area. Related to its chemically properties it has high
Differences between nano-sized zinc oxide and common zinc oxide: Surface effect: the number of atoms on the surface of the particles of nano-sized zno is much more than that on the surface of non-nano-zno particles of the same mass. As the particle size decreases, the percentage of surface atoms increases exponentially.
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    • nano zinc oxide vs non nano zinc oxide