| abstract |
[Problem] To provide a skin improving agent, blood vessel improving agent containing elastin peptide extracted from arterial sphere of fish as an active ingredient, and a pharmaceutical composition, food, feed and cosmetics containing them. A skin improvement agent and a blood vessel improvement agent contain elastin peptide extracted from arterial sphere of fish as an active ingredient, and the total of glycine, alanine, valine and proline content per 1000 residues is 650 residues or more. Yes, the total aspartic acid and asparagine content is 10 to 35 residues, the total glutamic acid and glutamine content is 20 to 50 residues, and the total lysine, histidine and arginine content is 20 to 50 residues. Yes, the sum of desmosine and isodesmosine content is 0.3 residues or more, and the hydroxyproline content is 10 residues or less. [Selection figure] None |