Hair pretreatment agent composition, pretreatment method of hair, and hair modifying method

摘要

Problem to be solved: to provide a hair pretreatment agent composition capable of efficiently permeating an effective component of a drug used for hair reprocessing treatment efficiently into the hair, a method of treating the hair using the same, and a method for modifying hair.Solution: (a) pretreatment agent composition for hair containing tris (hydroxymethyl) aminomethane and (b) water at pH of 25 ° C. and having a pH of from 7 to 12 or less, method of treating the hair using the same, and hair reforming method.No selection