摘要：

There is disclosed a hair colorant composition comprising an agent which will colour, tint and/or dye the hair and a alkali metal bicarbonate, especially sodium bicarbonate, present in an amount sufficient to enhance the length and intensity of the hair colour produced by the composition. The hair colouring agent may comprise a suitable cationic dye. The hair colorant composition may further comprise an anti-free-radical agent and/or a polymeric conditioning agent prepared from monomer entities selected from one or more of: acrylic acid, acrylamide dimethyliallylammonium chloride and any mixtures thereof. There is further described a container comprising a chamber comprising the flowable hair colorant composition the chamber being in fluid connection with a dispensing means such that composition is capable of being applied to the hair by the dispensing means, preferably the dispensing means comprising a brush through which the composition may flow.

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