ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,321, issued on Feb. 10, was assigned to Conopco Inc. (Englewood Cliffs, N.J.).
"Hair treatment method" was invented by Luisa Zoe Collins (Chester, Great Britain) and Rongrong Zhou (Wirral, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of providing anti-frizz to hair, comprising the steps of: (i) applying a shampoo composition to the hair, wherein the composition comprises (a) from 0.05 wt % to 1.4 wt % a soluble zinc compound. (b) a cleansing surfactant selected from anionic surfactants and mixtures thereof. (c) from 0.1 wt % to 10 wt % of a suspending agent, and (d) from 0.01 wt % to 5 wt % of a cationic deposition polymer; ...