Story perspectives
Hair-Derived Keratin Outperforms Fluoride in Tooth Repair
8/16/2025
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Story summary
- A study in *Advanced Healthcare Materials* indicates keratin from hair can repair and protect tooth enamel.
- When combined with saliva, keratin creates a hard coating that surpasses traditional fluoride toothpaste.
- Lab tests reveal it is five to six times harder than current dental repair plastics.
- Researchers plan to develop keratin toothpaste for market availability in a few years.
