Happi Staff05.29.20
US Patent No. 10,617,615 B2 (Andrew Malcolm Murray, Prem Kumar Cheyalazhagan Paul); Conopco, Inc (dba Unilever), Englewood Cliffs, NJ, has patented a method for styling hair consisting of applying to dry hair an aqueous hair treatment composition consisting of citric acid and having a pH of from 1 to 3; leaving the hair treatment on the hair for 5 to 90 minutes; rinsing the hair treatment composition from the hair; and styling.