Patents Assigned to Sorenco
  • Additive for hair treatment compositions
    Patent number: 4906460
    Abstract: An additive for hair treatment compositions includes soluble animal keratin in admixture with hydrolyzed animal collagen and silk amino acids.
    Type: Grant
    Filed: August 5, 1988
    Date of Patent: March 6, 1990
    Assignee: Sorenco
    Inventors: Wendy W. Kim, Sherman L. Kendall