Keratin is one of those buzzwords that’s been stamped on shampoo bottles for so long, it’s easy to forget it actually means ...

These are the best shampoos for oily hair, according to editor testing and dermatologists, for oily scalps and dandruff, ...

Key ingredients: Hydrolyzed keratin (strengthening), biotin ... I love the lather of the shampoo and the conditioner delivers just the right hydration without weighing my hair down.