Happi Staff02.03.20
US Patent No. 10,493,007 B2 (Harrison F. Dillon, Anwar Zaman, Anthony G. Day, Anna Coragliotti); Algenist Brands, LLC, Westport, CT, has patented a composition for treating hyperpigmentation on the skin that contains a microalgal exopolysaccharide produced by isolating from a Parachlorella microalgal cell culture medium a Parachlorella microalgal exopolysaccharide secreted by Parachlorella microalgal cells into the culture medium; drying the Parachlorella microalgal exopolysaccharide to form a film by heating the Parachlorella microalgal exopolysaccharide at a temperature in a range from about 80°C to about 180°C; and generating Parachlorella microalgal exopolysaccharide particles having an average size of between 0.1 to 400 microns. The Parachlorella microalgal exopolysaccharide particles consist essentially of the heated exopolysaccharide and increase in volume on contact with water by at least 200. The composition also contains hyaluronic acid.