03.04.19
US Patent No. 10,172,768 B2 (Hyoung June Kim,Ji Young Lee, Hyun Suk Lee, Yu Chul Jung, Ga Young Cho, Dong Wook Shin, Tae Ryong Lee); Amorepacific Corporation, Seoul, has patented a cosmetic composition for blocking blue light. It is comprised of Chuncheon jade powder as an active ingredient, and cetearyl alcohol, glyceryl stearate SE, polysorbate 60, sorbitan stearate, PEG-40 stearate, diisostearyl malate, cetyl ethylhexanoate, mangifera indica(mango) seed butter, cyclopentasiloxane, cyclohexasiloxane, dimethicone, disodium EDTA, glycerin, betaine, tromethamine, phenoxyethanol, glyceryl caprylate, ethylhexylglycerin, butylene glycol, hydroxyethylacrylate/sodium acryloyldimethyl taurate copolymer, carbomer, and water. The blue light is visible light having a wavelength of between 380 to 500nm.
