12.09.22
US Patent No. 11,517,518 B2 (Tianyi Liu, Prasad S. Ranadive); L'Oréal, Paris has patented a two-step cosmetic system. The first composition contains styrenic block copolymer, a silicone acrylate copolymer and volatile oil. The second composition includes a silicone oil with a viscosity between 100 cst and 1,000,000 cst, and wherein a critical strain of the system is less than 25%.