In a breakthrough that could redefine oral hygiene, researchers at King's College London have pioneered a toothpaste and professional gel using keratin—the same protein found in human hair, skin, and wool—to regenerate tooth enamel, potentially halting decay entirely and offering sustainable alternatives to fluoride- and plastic-based treatments.
Tooth enamel, the hardest substance in the human body, does not regenerate once lost. Acidic foods, poor oral hygiene, and ageing all contribute to enamel erosion, leading to sensitivity, pain and eventual tooth loss. While fluoride slows this process, keratin-based treatments have shown the ability to stop it entirely.
