Two component hair treatment kit comprising a hair coloring cream and a developer composition comprising a specific tensioactive compound

A kit, comprising in spatially separated form at least two kit components:

• A) a first kit component comprising at least these constituents:
• A-a) at least one alkaline agent;
• A-b) at least one amino acid;
• A-c) at least one organic phosphate ester compound selected from the group consisting of a monoester of a phosphate of one or more alkoxylated fatty alcohols, a diester of a phosphate of one or more non-alkoxylated fatty alcohols, and a mixture of both;
• A-d) water;
• B) a second kit component comprising at least these constituents:
• B-a) at least one emulsifier;
• B-b) hydrogen peroxide;
• B-c) at least one fatty alcohol;
• B-d) water;
• wherein the emulsifier is described by formula (I),
• wherein
• R1 represents a saturated or unsaturated, linear or branched C7-C24 chain;
• L1 is a linking group and represents a carbonyl or a sulfonyl group;
• R2, R3, R4, R5 represent each individually a hydrogen atom or a methyl group,
• wherein at least one of R2 or R3 is a hydrogen atom, and
• wherein at least one of R4 or R5 is a hydrogen atom;
• L2 is a linking group independent from L1 and is selected from the group consisting of a carbonyl group, a carboxylic ester group, a sulfonyl group, a sulfonic ester group, a phenylene group, or a —OCH2—CH(OH)—CH2— group;
• i, k, are independent from each other and can have an integer value of 0 or 1;
• m and n are each independent from each other and can have an integer value of at least 0;
• G is selected from the group consisting of sorbitan;
• a sorbitan where the hydroxy groups are partially or fully substituted by polyethyleneoxy chains;
• an anionic group selected from the group consisting of a sulfonic acid group, a sulfate group, a C1-alkylenesulfonic acid group, and a C2-alkylenesulfonic acid group;
• a cationic group which includes a quarternized ammonium cation and a combination of two or more thereof.