Would you use a toothpaste made from human hair if it promised to protect, repair, and reduce pain in your teeth better than ...

Current products only slow down tooth decay. But new research suggests enamel can be regenerated by using keratin.

It’s about the K-beauty brand’s freshly launched line of bond-repair hair care products aimed at transforming damaged tresses. This may be Cosrx’s first foray into hair care, but based on its ...