Hydrolyzed keratin

Hydrolyzed keratin (CAS 69430-36-0), also called keratin hydrolyzates, is a protein-derived ingredient made by breaking down keratin from wool, feathers, or hair into soluble peptides and amino acids.

Where is Hydrolyzed keratin used?

• Personal care: film-forming and moisture-binding ingredient
• Hair care: bonds to damaged cuticles, improving tensile strength and reducing breakage
• Skin care: peptide fractions support moisture retention in serums and creams
• Textile processing: improves softness, surface smoothness, and dye uptake on wool and synthetic blends
• Leather manufacturing: restores flexibility and improves the feel of finished hides
• Lower molecular weights serve skin penetration while higher weights are preferred for surface film formation.

Good to know: Molecular weight fractions vary by supplier and are selected based on target application.

Commercial specifications

• Liquid forms typically 25–50% active content depending on grade