Stable solutions of peptide copper complexes and cosmetic and pharmaceutical formulations produced therefrom
AssigneeProCyte Corporation
InventorLeonard M. Patt
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Abstract
Compositions are formed by adding at least one amino acid to an aqueous solution of at least one peptide copper complex, and disclosed methods impart to solutions of peptide copper complexes, chemical stability and resistance to precipitation of the complexes through the addition of at least one of certain amino acids thereto. Also disclosed are compositions comprising at least one peptide copper complex and at least one of certain amino acids, as well as compositions further comprising one or more preservatives to provide thereto resistance to microbial attack and toxicity to microbes. Medical devices, pharmaceuticals and cosmetics comprising such compositions are also disclosed.
Claims34
A composition formed by adding an amino acid to an aqueous solution of a peptide copper complex, with the proviso that the amino acid is not histidine.
A composition comprising at least one amino acid and an aqueous solution of at least one peptide copper complex, with the proviso that the at least one amino acid is not histidine.
A method for enhancing the chemical stability of an aqueous solution of a peptide copper complex comprising the step of adding an amino acid to the solution.
A method for preventing the precipitation, at ambient temperatures, refrigeration temperatures, or upon thawing after freezing, of a peptide copper complex from an aqueous solution thereof, comprising the step of adding an amino acid to the solution.
Dependencies are inferred from the claim text.