Patent ID: 8632611

Claim:
A method for colouring hair comprising the steps of: i) mixing a developer component with a dye component to obtain a non-diluted hair colouring composition, wherein the developer component comprises an oxidizing agent and the dye component comprises at least one oxidative dye precursor and/or an alkalising agent; ii) applying a first portion of the non-diluted hair colouring composition obtained in step i) to the hair and retaining a second portion of the non-diluted hair colouring composition obtained in step i); iii) mixing the second portion with a dilutant component comprising water and at least one active component selected from surfactants, conditioning agents, polymers and mixture thereof at a mixing ratio of about 4:1 to about 1:2 to obtain a diluted hair colouring composition; iv) applying the diluted hair colouring composition to the hair; v) rinsing the hair.