The objective of the present disclosure is a multi-component packaging unit (kit-of-parts) for dyeing keratinous material, in particular human hair, comprising separately prepared



a first container comprising an agent (a), wherein the agent comprises (a):
(a1) at least one amino-functionalized silicone polymer, and


a second container comprising an agent (b), wherein the agent comprises (b):

(b1) Water and
(b2) a buffer system comprising at least one inorganic or organic acid (b2-I) and at least one salt of this acid (b2-II), and
(b3) at least one color-imparting compound.




A second objective of the present disclosure is a corresponding method in which the two agents (a) and (b) are used.