Christoph Hans Peter BONAUER,Graham John MYATT,Nan WANG
申请号：
US14465314
公开号：
US20150053228A1
申请日:
2014.08.21
申请国别(地区):
US
年份:
2015
代理人:
摘要：
Method for colouring hair wherein a first hair colouring composition is applied to the hair, e.g. the hair roots and a second hair colouring composition is applied to the hair, e.g. the hair lengths and tips, wherein the pH of the second hair colouring composition is lower than the pH of the first hair colouring composition.
