Patents Assigned to John Paul Mitchell Systems
  • Composition and process for permanent waving
    Patent number: 5378454
    Abstract: A waving lotion for use in an exothermic permanent wave comprising an activator in an amount sufficient to provide an exothermic reaction, with an effective perming amount of a reducing agent, wherein the reducing agent is a combination of a more active reducing agent and a less active reducing agent in a ratio necessary to effect a reduction in hair damage, wherein the less active reducing agent is an ester of thioglycolic acid.
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: January 3, 1995
    Assignee: John Paul Mitchell Systems
    Inventor: Frederick H. Burmeister