公开(公告)号：US20230381080A1

公开(公告)日：2023-11-30

申请号：US18265749

申请日：2021-12-03

Applicant: L'Oreal

Inventor： Thomas SENGMANY ,  Chantal JOUY ,  Leila HERCOUET ,  Tristan VAUTIER

IPC: A61K8/44 ,  A61K8/34 ,  A61K8/81 ,  A61K8/898 ,  A61Q5/10 ,  A61Q5/08

CPC classification number: A61K8/44 ,  A61K8/34 ,  A61K8/8194 ,  A61K8/898 ,  A61Q5/10 ,  A61Q5/08

Abstract: The present invention relates to the use of one or more particular amino acids or of a composition comprising same as a pretreatment for a process for dyeing or bleaching keratin fibres in order to improve the dyeing or bleaching of the keratin fibres.