Bunte salts from amino acids and oligopeptides as protective ingredients in hair treatment means

A hair treatment agent, comprising in a cosmetic carrier

• (a) at least one compound of the general formula (I)
• wherein
• R1 denotes a hydrogen atom or a structural element of formula (II)
• wherein
• x denotes an integer from 1 to 100,
• the radical R2 in each of the structural elements of formula (II) can be selected independently of the preceding structural element of formula (II),
• R2 denotes a hydrogen atom, a methyl group, an isopropyl group, a 2-methylpropyl group, a 1-methylpropyl group, a benzyl group, a 4-hydroxybenzyl group, a hydroxymethyl group, 1-hydroxyethyl group, a 4-amino butyl group, a 3-carbimi dami dopropyl group, a 2-carb oxyethyl group, a carboxymethyl group, a 2-carb amoyl ethyl group, a carbamoylmethyl group, a sulfanylmethyl group, a 2-(methylsulfanyl)ethyl group, a 1H-imidazol-4-ylmethyl group, a 1H-indol-3-ylmethyl group or a (sulfosulfanyl)methyl group, and
• M1 denotes a structural element of formula (III)
• wherein
• y denotes an integer from 1 to 100,
• the radical R3 in each of the structural elements of formula (III) can be selected independently of the preceding structural element of formula
• R3 denotes a hydrogen atom, a methyl group, an isopropyl group, a 2-methylpropyl group, a 1-methylpropyl group, a benzyl group, a 4-hydroxybenzyl group, a hydroxymethyl group, 1-hydroxyethyl group, a 4-amino butyl group, a 3-carbimi dami dopropyl group, a 2-carb oxyethyl group, a carboxymethyl group, a 2-carbamoylethyl group, a carbamoylmethyl group, a sulfanylmethyl group, a 2-(methylsulfanyl)ethyl group, a 1H-imidazol-4-ylmethyl group, a 1H-indol-3-ylmethyl group or a (sulfosulfanyl)methyl group, and
• M2 denotes a hydrogen atom, an equivalent of one or more cations or an ammonia ion (NH4)+.

A method for oxidative dyeing or lightening of hair, comprising the following steps

• (1) application of preparation (A) on the hair, where preparation (A) is
• a hair treatment agent, comprising, in a cosmetic carrier:
• at least one compound of the general formula (I)
• wherein
• R1 denotes a hydrogen atom or a structural element of formula (II)
• wherein
• x denotes an integer from 1 to 100,
• the radical R2 in each of the structural elements of formula (II) can be selected independently of the preceding structural element of formula (II),
• R2 denotes a hydrogen atom, a methyl group, an isopropyl group, a 2-methylpropyl group, a 1-methylpropyl group, a benzyl group, a 4-hydroxybenzyl group, a hydroxymethyl group, 1-hy droxy ethyl group, a 4-amino butyl group, a 3-carb i mi dami dopropyl group, a 2-carb oxy ethyl group, a carboxymethyl group, a 2-carbamoylethyl group, a carbamoylmethyl group, a sulfanylmethyl group, a 2-(methylsulfanyl)ethyl group, a 1H-imidazol-4-ylmethyl group, a 1H-indol-3-ylmethyl group or a (sulfosulfanyl)methyl group, and
• M1 denotes the grouping —OM2 or a structural element of formula (III)
• wherein
• y denotes an integer from 1 to 100,
• the radical R3 in each of the structural elements of formula (III) can be selected independently of the preceding structural element of formula (III),
• R3 denotes a hydrogen atom, a methyl group, an isopropyl group, a 2-methylpropyl group, a 1-methylpropyl group, a benzyl group, a 4-hydroxybenzyl group, a hydroxymethyl group, 1 -hy droxy ethyl group, a 4-amino butyl group, a 3-carb i mi dami dopropyl group, a 2-carb oxy ethyl group, a carboxymethyl group, a 2-carbamoylethyl group, a carbamoylmethyl group, a sulfanylmethyl group, a 2-(methylsulfanyl)ethyl group, a 1H-imidazol-4-ylmethyl group, a 1H-indol-3-ylmethyl group or a (sulfosulfanyl)methyl group, and
• M2 denotes a hydrogen atom, an equivalent of one or more cations or an ammonia ion (NH4)+;
• (2) application of preparation (B) on the hair, where preparation (B) is an oxidant preparation comprising at least one oxidant selected from the group of hydrogen peroxide, ammonium peroxodisulfate, potassium peroxodisulfate and sodium peroxodisulfate, and wherein preparation (A) and preparation (B) may optional be combined prior to application to the hair;
• and
• (3) washing the hair.