| 摘要 |
The application relates to a packaging system for a hair coloring product containing: i) at least one container ( 102 ) holding a composition comprising at least one hair colorant, said composition forming or intended to form a hair coloring product; and ii) at least one test device ( 20 ) designed to perform a patch test and incorporating a tube ( 21 ) delimiting an internal space containing a dose of said composition, the tube incorporating an outlet aperture ( 29 ) and being arranged to cause said composition to be expelled from said outlet aperture ( 29 ) in response to excess pressure within the internal space of the tube or when the latter is vented via at least one passage separate from the outlet aperture ( 29 ).
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