Compositions and methods for treating keratinous material

A method for unshrinking a shrunken garment comprising wool fiber, the method comprising:

• providing a solution comprising a reducing agent, a nonionic surfactant, and an effective amount of a binder to reduce odor;
• diluting the solution in water to produce an aqueous solution;
• introducing the shrunken garment into the aqueous solution;
• allowing the shrunken garment to absorb the aqueous solution forming a soaked garment;
• rinsing the soaked garment with a solvent to remove residual reducing agent from the garment;
• physically stretching the rinsed garment;
• and
• allowing the stretched garment to dry without further physical stress.