Seana C&t is a supplying UV BLOCK MATERIALS like ZnO, TiO2. We have a special patent to produce these materials. Absolutely our products distinguish from other existing materials. Our products have very good wavelength range (Up to 200nm~400nm) . We supply them as the slurry after mono-dispersed powders produced by hydrothermal reaction. Also if you want, we can supply ZnO as silane coupling agent coated powder for cosmetic manufacturing. We can produce them as your demands or your spec. We can control the SPF as you want.