PROBLEM TO BE SOLVED: To provide a multi-agent type hair treatment agent capable of controlling permeability of hydrolyzed keratin, hydrolyzed silk, hydrolyzed sericin, hydrolyzed collagen, and derivatives thereof into hair, and a hair treating method.SOLUTION: The multi-agent type hair treatment agent comprises a pretreatment agent with apigenin blended therein and a post-treatment agent with hydrolyzed keratin, hydrolyzed silk, hydrolyzed sericin, hydrolyzed collagen or derivatives thereof blended therein, the method for treating hair treats the hair with said multi-agent hair treating agent.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】加水分解ケラチン、加水分解シルク、加水分解セリシン、加水分解コラーゲン、それらの誘導体の毛髪への浸透性を制御できる多剤式毛髪処理剤、及び毛髪処理方法の提供。【解決手段】多剤式毛髪処理剤は、アピゲニンが配合された前処理剤と、加水分解ケラチン、加水分解シルク、加水分解セリシン、加水分解コラーゲン、又はそれらの誘導体が配合された後処理剤であり、毛髪処理方法は、その多剤式毛髪処理剤で毛髪を処理する。【選択図】図1