Toothpaste Made From Hair Provides Natural Root to Repair Teeth
23rd May 2026
In a new study published today, scientists discovered that keratin, a protein found in hair, skin and wool, can repair tooth enamel and stop early stages of decay.
The King’s College London team of scientists discovered that keratin produces a protective coating that mimics the structure and function of natural enamel when it comes into contact with minerals in saliva.
…
While fluoride toothpastes are currently used to slow this process, keratin-based treatments were found to stop it completely. Keratin forms a dense mineral layer that protects the tooth and seals off exposed nerve channels that cause sensitivity, offering both structural and symptomatic relief.
The treatment could be delivered through a toothpaste for daily use or as a professionally applied gel, similar to nail varnish, for more targeted repair. The team is already exploring pathways for clinical application and believes that keratin-based enamel regeneration could be made available to the public within the next two to three years.