08.05.22
US Patent No. 11,400,038 B2 (Olga Dueva-Koganov, Taylor Oswald, Christine Crane, Robert Bianchini); Rodan & Fields, LLC has patented a sunblock that is comprised of antioxidant blend comprising methyl carboxymethylphenylaminocarboxy propylphosphonate (MCAP), (2R)-3-(3,4-dihydroxyphenyl)-2-{[(2E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl]oxy}propanoic acid (rosmarinic acid), and 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-[α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranosyloxy]-4H-chromen-4-one (rutin). The antioxidant blend demonstrates a synergistic effect compared with the MCAP, the rosmarinic acid, or the rutin alone.