In August 2026, researchers from King's College London unveiled findings that could revolutionize approaches to repairing damaged bones. According to a report on the Al Arabiya website, keratin extracted from sheep's wool demonstrated an ability to support the formation of new bone tissue in animal experiments.
The Al Arabiya article references a publication in Science Daily, highlighting that the keratin-based material surpassed traditional collagen membranes in the quality of the newly formed bone. While collagen stimulated a greater volume of new tissue, keratin membranes promoted a more organized structure, closely resembling natural bone.
Researchers initially tested keratin in laboratory settings using human bone cells. The cells successfully attached to and grew on the material, exhibiting signs of normal bone formation. Subsequently, the material, in the form of chemically treated membranes, was implanted into rats with significant skull bone defects—injuries that typically do not heal on their own.
Within several weeks of implantation, the keratin membranes guided the growth of new bone in the damaged areas. According to the source, the resulting tissue showed greater structural organization and strength compared to outcomes achieved with collagen. Sherif Elsharkawy, a Bachelor of Medicine from King's College London, noted that this marks the first successful test of a wool-based material for bone regeneration in a living organism.
Al Arabiya also draws attention to the practical implications: sheep's wool is a renewable natural resource often considered an agricultural waste product. Utilizing keratin could reduce reliance on collagen, which, despite its "gold standard" status, has limitations in terms of strength and degradation rate.
According to the researchers, these findings open up prospects for creating new biomaterials in regenerative medicine and dentistry. The keratin-based material is positioned as a potential alternative, capable of competing with collagen in the long term.
Preliminary data suggest that keratin derived from sheep's wool could form the basis for sustainable solutions in bone tissue regeneration.
