PROBLEM TO BE SOLVED: To provide a hair-treatment capable of imparting more conditioning effect (healthy hair-like smoothness and resilience, coating feeling, flexibility, oil content and the like) to the hair (particularly, damaged hair) than that in the case of compounding a silicone, even without compounding a silicone.SOLUTION: A hair treatment agent contains 2.0 to 13.0 wt.% of a C12 to 22 aliphatic alcohol 0.005 to 5.0 wt.% of an oil and fat composition containing at least an interesterified oil and fat and a vegetable oil and fat having a rising melting point of 10°C or less 0.5 to 6 wt.% of a fatty acid amide amine an acid in an amount leading to a pH of 2.5 to 5.5 and 0.1 to 7.0 wt.% of an ester oil.COPYRIGHT: (C)2014,JPO&INPIT【課題】 シリコーン類を配合しなくともシリコーン類を配合したと同等以上に、コンディショニング効果(健康毛様の滑らかさ及び弾力、被膜感、しなやかさ、油分等)を毛髪(特に、痛んだ毛髪)に付与することができるヘアトリートメント等、を提供する。【解決手段】 C12~22脂肪族アルコール類を2.0~13.0重量%、エステル交換油脂と上昇融点が10℃以下である植物性油脂とを少なくとも含有する油脂組成物を0.005~5.0重量%、脂肪酸アミドアミン類を0.5~6重量%、酸類をpH2.5~5.5となる量、及びエステル油を0.1~7.0重量%を含有する毛髪処理剤。【選択図】なし