Patents

Hair Thickening Compositions

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.

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