A team of materials scientists from Istituto Italiano di Tecnologia, the University of Milano-Bicocca, and Istituto Italiano di Tecnologia via Morego, all in Italy, has found a way to use keratin to ...

With permanent methods, the hair will hold its new shape until you cut it off. (There's also a permanent method, a keratin treatment, that lies somewhere in the middle—but more on that later.) ...

Because keratin treatments are great at amping up ... uses formaldehyde in order to lock the hair into its new straighter shape. As exposure (especially repeat exposure) to formaldehyde can ...

Keratin has been a buzzword haircare ingredient for some time now, especially with the popularity of salon treatments such as the Brazilian blowout. But what about gentler, at-home keratin hair ...