Rachael Link is a registered dietitian and health writer based in San Francisco. She completed her undergraduate degree at the University of Central Missouri and holds a master’s degree from New York ...

Anyone who has ever had a tooth crack or break knows the sinking feeling that follows because it almost certainly means an urgent trip to the dentist. While the enamel on your teeth is the hardest ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. "Enamel is the hardest tissue in the body, but unlike bone or skin, it ...

A team of scientists in London may have found a way to repair tooth enamel using an ingredient found in an unexpected place: human hair. Researchers at King’s College London experimented with keratin, ...

Toothpaste made from your own hair may offer a sustainable and clinically effective way to protect and repair damaged teeth. In a new study published today, scientists discovered that keratin, a ...

The next major innovation in dental care just might be a new ingredient added to our toothpaste and mouthwash from an unlikely source: sheep’s wool or human hair. Both contain the fibrous protein ...

A new study from King's College London suggests that keratin—the protein found in human hair, skin and wool—can regenerate tooth enamel and potentially halt early tooth decay. Published in Advanced ...