04.20.17
US Patent No. 9,610,233 B2; Procter & Gamble Co. has patented a method for increasing hair shaft diameter, the method comprising applying a hair care composition to a region of the hair, wherein the hair care composition comprises: resorcinol; and a rheology modifier. The rheology modifier comprises a polyacrylamide component, a C 13-14 isoparaffin component, and a laureth-7 component.