Overview

• Researchers published peer-reviewed findings in Advanced Healthcare Materials showing keratin extracted from wool forms a biomimetic mineral scaffold on tooth surfaces in laboratory tests
• The keratin coating attracts calcium and phosphate from saliva to create an enamel-like layer that seals nerve channels and halts early-stage decay more effectively than fluoride
• Authors suggest two delivery options—a daily toothpaste for home use or a nail polish–style professional gel for targeted repairs—that leverage the protein’s restorative properties
• The team highlights sourcing keratin from abundant biological waste such as discarded hair or excess wool to offer a sustainable alternative to synthetic dental materials
• Next steps include safety testing, in vivo studies, clinical trials and regulatory approval, with scalable manufacturing partnerships needed before public availability