1. Collagen hydrolyzate as an active substance for the treatment and / or prevention of cellulite. 2. The collagen hydrolyzate according to claim 1, wherein at least 90 wt. % collagen hydrolyzate have a molecular weight of less than 3,500 Da, and preferably at least 45 wt. % collagen hydrolyzate have a molecular weight of less than 1,500 Da. 3. A collagen hydrolyzate according to claim 1 or 2, wherein the collagen hydrolyzate comprises at least four characteristic peptides with a molecular weight of from 600 to 1,200 Da. The collagen hydrolyzate according to claim 3, wherein at least four characteristic peptides in the molecular weight distribution determined by MALDI mass spectroscopy have at least twice the intensity, preferably at least four times the intensity compared to their surroundings. Collagen hydrolyzate 1, 2 or 4, wherein the collagen hydrolyzate includes a peptide from 620 to 690 Da, a peptide from 790 to 860 Da, a peptide from 980 to 1.050 Da, and a peptide from 1.175 to 1.245 Da. 6. Collagen hydrolyzate 1, 2 or 4, and the collagen hydrolyzate includes other characteristic peptides with a molecular weight of from 1,500 to 3,500 Da. 7. Collagen hydrolyzate 1, 2 or 4, moreover, the collagen hydrolyzate has a hydroxyproline fraction of 12 wt. % or more. 8. Collagen hydrolyzate 1, 2 or 4, wherein the collagen hydrolyzate is obtained by enzymatic hydrolysis of gelatin. 9. The collagen hydrolyzate according to claim 8, wherein the gelatin is pork gelatin, in particular pork skin gelatin with residual fat. The collagen hydrolyzate according to claim 9, wherein the collagen hydrolyzate is obtained by the subsequent action of at least two endoproteases with different specificity, in1. Гидролизат коллагена в качестве действующего вещества для лечения и/или предупреждения целлюлита.2. Гидролизат коллагена по п. 1, причем по меньшей мере 90 мас. % гидролизата коллагена имеют молекулярный вес менее чем 3.500 Да, и предпочтительно по меньшей мере 45 мас. % гидролиз
