Made from hair or wool, the toothpaste uses keratin protein, which combines with saliva to form a protective crystal-like coating that mimics natural enamel. Unlike fluoride toothpastes that only slow decay, this keratin-based treatment can stop it completely by actually repairing damaged tooth enamel. This could potentially offer the first real solution to permanently repair what was previously considered irreversible damage.

Why it’s exciting: Keratin-based toothpaste offers the first potential solution to permanently repair tooth enamel that was previously considered irreversibly damaged.

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