Hydrolyzed silk

Hydrolyzed silk (CAS 96690-41-4), also marketed as Crosilk 10,000 and silk protein hydrolyzate, is produced by breaking down silk fibroin into low-molecular-weight peptides and amino acids.

Where is Hydrolyzed silk used?

• Personal care: film-forming humectant and surface-conditioning agent
• Hair and skin care: protective peptide film that improves moisture retention, combability and surface feel
• Shampoos, serums and leave-on treatments: conditioning active
• Textile manufacturing: fiber-finishing agent that imparts softness and improves hand feel without altering dye uptake
• Leather processing: finishing formulations that enhance surface flexibility and appearance
• Pharmaceutical and nutraceutical preparations: bioavailable amino acid delivery in oral and topical formats

Good to know: Buyers should confirm molecular weight distribution and protein content against their requirements, and verify that the material meets necessary industry benchmarks.

Commercial specifications

• Aqueous solution; dry powder forms for lower water activity or extended shelf stability
• Molecular weight ranges typically defined by the supplier