Amorepacific R&D Center has developed a 'porous, micro inorganic material platform technology', which is a white-cast-free solution that reflects UV rays effectively. Related research accomplishments that will become a cradle for innovative inorganic sunscreens have also been published online in the March issue of Particle & Particle Systems Characterization, a reputable journal, and selected to grace the cover of its April issue. In an effort to develop some type of breakthrough for these demerits, Dr. Li Yan from Amorepacific R&D Center Material Lab partnered up with Professor Lee Gi-ra and his lab in Sungkyunkwan University Chemical Engineering to conduct a joint research project. Through this study, the team were able to evenly synthesize and assemble micro-sized spherical silica particles that are hollow in the middle. The film produced from these particles can be adjusted to have even air bubble sizes and gaps in between, to be able to reflect visible light and UV spectrum rays. The team also discovered that by matching the refractive index, they were able to more effectively reflect UV rays while still appearing transparent in the visible spectrum. This is similar to the natural mechanism of chameleons or green algae that quickly change their skin color by scattering light.