A keratin treatment allows me to wear my hair straight ... shampoo scalp treatment that's made with exfoliating agents like alpha-hydroxy acids (AHAs), but Roque notes that as these ingredients ...

The leave-in treatment is designed to be applied to ... for years now — all of which contain the brand's proprietary alpha keratin 60ku protein — none have made quite as big of a difference ...

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 ...