How to improve the damage of the hair using a damage hair improving agent and it

The present invention, (A) dipentaerythritol and consists of a one or more fatty acids selected from the group consisting of fatty acids of 5 to 16 carbon atoms, and dipentaerythritol residue and fatty acid residue having a carbon number of 5-16 molar ratio of 1.0: 3.0 to 1.0: a 6.0 a a ester compound, and (B) a linear or branched alkyl group or alkenyl group having 16 to 18 carbon atoms, and the ester compound viscosity at 25 ° C. is not more than 2,000mPa · s, (C) has a linear or branched alkyl group or alkenyl group having 16 to 18 carbon atoms, and 2 viscosity at 25 ° C., alcohols or less 000mPa · s, and to damage the hair improving agent containing one or more substances selected from the group consisting of (D) having 20 or more hydrocarbon oils carbon. The damage hair improving agent, giving a sense of slip to the hair that was damaged, and, give a smooth feeling to improve the feeling of roughness present in the hair damaged.