| abstract |
Provided is a hair cosmetic composition, which contains: n (A) an organic polycarboxylic acid having from 5 to 40 carbon atoms in total and from 4 to 10 carboxy groups, or a salt thereof, and (B) an organic solvent selected from the group consisting of aromatic alcohols, N-alkylpyrrolidones, alkylene carbonates, polypropylene glycols, lactones and cyclic ketones, wherein the solvent has a ClogP of from −2 to 3; which composition has a pH of from 2 to 5 at 25° C. when diluted to 20 times the weight with water; and a hair quality improving method including the step of treating the hair with the hair cosmetic composition. |