Inorganic UV sunscreen, effective resistance to UV； Non toxic , non side-effect to skin.；Non separation out of water ；Uniform particle size, stable disperse.
Many sunscreens contain nanoparticles of zinc oxide or titanium dioxide, even though you probably won’t see the term “nano” on the labels. We asked an outside lab to test for those nanoparticles in eight sunscreens that listed either compound on their label. All contained the particles, yet only one, Keys Solar RX, disclosed that use of nanotechnology. Whether smearing those nanoparticles on your skin can harm your health is not clear. But you don’t generally need them to get superior protection, our tests found. Good compatibility with other cosmetic material.
It is a white free flowing powder.
According to the Skin Cancer Foundation, these rays are "present with relatively equal intensity during all daylight hours throughout the year, and can penetrate clouds and glass." UVB rays, on the other hand, are shorter (290 to 320 nanometers) and are responsible for visible damage to the skin in the form of sunburns. It occurs in nature as rutile, anatase, or brookite crystals. When used as a sunscreen nano titanium dioxide absorbs and scatters light (it absorbs ultraviolet B (UV B) light from 290 – 320 nm and scatters UV A from 320 – 400 nm).
Nanoparticles of the two compounds are used in sunscreens because the normally white substances, which absorb ultraviolet radiation, become more transparent when the particles are nano-sized.
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