We asked a dermatologist to break down just how often you should be shampooing your hair.

But don't think that means you should grab the first volumising bottle you see and lather on up, as finding a shampoo that ...

Too much "hydration" usually means limp and greasy hair for me.

This is how I keep my mermaid, rib-skimming hair happy.

Purple shampoo eliminates yellow tones in blonde hair by using violet pigments to neutralize brassiness. Blue shampoo is ...