Overview

• King’s College London researchers demonstrated in laboratory tests that keratin extracted from wool forms a crystal scaffold replicating natural enamel structure.
• In vitro experiments showed the keratin scaffold attracted calcium and phosphate ions and halted enamel decay completely, outperforming traditional fluoride treatments.
• The peer-reviewed study was published in Advanced Healthcare Materials, marking the first biomimetic enamel regeneration using a sustainable protein source.
• The research team has launched Eterna Regeneratives to develop keratin-based toothpaste, mouthwash and professional gels with an anticipated two- to three-year timeline to market.
• Before consumer availability, keratin treatments must undergo in vivo safety testing, phased clinical trials and regulatory clearance, with questions remaining about long-term durability and consumer acceptance.