Patent ID: 8802065
Filing Date: 2014-08-12
Classification: A61K,A61Q

Abstract:
1. An aqueous preservative solution with a high amino acid content, comprising: (A) at least pyrrolidone carboxylic acid and/or a salt thereof; (B) at least one basic amino acid and/or a salt thereof; (C) at least one acidic amino acid and/or a salt thereof (D) at least one neutral amino acid and/or a salt thereof; (E) lactic acid and/or a salt thereof; and (F) water, wherein: component (A) and component (E) are present in a total amount of from 25 to 40% by weight, based on the total weight of component (A), component (B), component (C), component (D), component (E), and component (F), component (A) is present in an amount of from 50 to 95% by weight, based on the total weight of component (A) and component (E), component (A), component (B), component (C), and component (D) are present in a total amount of from 23 to 60% by weight, based on the total weight of component (A), component (B), component (C), component (D), component (E), and component (F), and the pH of the solution is from 3.5 to 5.5.