Patents: Urban # protection

摘要

US Patent 10,172,768 Application No 15/576,173 Granted 8 January 2019 Assignee AmorePacific Corp According to the applicants,blue light refers to visible light with a wavelength of 380-500nm,while light with a wavelength range of 380-430nm is classified as violet light in the blue light spectrum. The adverse effects of UVB and UVA radiation on human skin are well documented. Now the adverse effects of blue light on the skin have also been investigated,and blue light has been proven to encourage free radical formation in skin cells and to upset sleep patterns. The applicants claim that jade powder applied in a cosmetic composition can be useful in specifically reflecting light in the blue light spectrum,thereby protecting the skin. There are various forms of jade;the patent cites Chuncheon jade,which is a high-quality nephrite jade produced in the Chuncheon area of Gangwon-do. Nephrite jade consists of crystals and aggregates of microparticles having a fibrous texture,and includes three minerals,calcium(Ca),iron(Fe)and magnesium(Mg),all of which are good for the human body.