Hair care compositions with selected amino acids and selected complexes of acidic protein hydrolysates and basic fatty acid amidoamines

1. A cosmetic composition comprising, in a suitable cosmetic carrier, and in each case relative to the total weight of the composition,

a) at least one amino acid in a total quantity of 0.01 to 10.0 wt. %; and

b) at least one selected complex of an acidic protein hydrolysate and a basic fatty acid amidoamine in a total quantity of 0.01 to 10.0 wt. %, the acid protein hydrolysate being selected from the group consisting of plant based protein hydrolysates, collagen hydrolysates, keratin hydrolysates, silk hydrolysates, and milk protein hydrolysates, and the basic fatty acid amidoamine having the structure

R 1 —NR 2 —(CH 2 ) n —NR 3 R 4 R 5 ,

in which R 1 denotes a linear or branched, saturated or unsaturated acyl residue with 8 to 40 C atoms in the chain, R 2 denotes a C 1 to C 4 alkl residue or hydrogen, R 3 , R 4 and R 5 mutually independently denote hydrogen, a methyl residue or a C 2 to C 4 alkyl residue, n denotes an integer selected from 1, 2, 3, 4 or 5, and

c) 0.1 to 10.0 wt .% esterquats.

2. The cosmetic composition according to claim 1 , wherein the selected complex of an acidic protein hydrolysate and a basic fatty acid amidoamine is selected from the group consisting of cetearamidoethyl diethonium hydrolyzed proteins.

3. The cosmetic composition according to claim 1 , wherein the at least one selected complex of an acidic protein hydrolysate and a basic fatty acid amidoamine is cetearamidoethyl diethonium hydrolyzed wheat.

4. The cosmetic composition according to claim 1 , further comprising one or both cationic surfactants selected from the group consisting of behentrimonium chloride and cetyltrimethylammonium chloride.

5. The cosmetic composition according to claim 1 , further comprising at least one zwitterionic and/or amphoteric surfactant.

6. The cosmetic composition according to claim 5 , characterized in that the zwitterionic and/or amphoteric surfactant is selected from the group consisting of cocamidopropyl betaine and coco betaine.

7. The cosmetic composition according to claim 1 , further comprising at least one active substance selected from the group consisting of coenzyme Q-10, ectoine, a purine and the derivatives and salts thereof and a vitamin of the B series.

8. A method for treating keratinic fibers, comprising applying the cosmetic composition according to claim 1 onto the keratinic fibers and, after a period of exposure of a few seconds up to 45 minutes, rinsing the cosmetic composition back out.