Most people reach for the same dandruff shampoo and wonder why it never quite works. The answer is usually simple: flaky scalp has more than one cause, and they each need something different. Here's how to tell what your scalp is actually telling you.

Cold weather and indoor heating can leave your scalp dry, flaky, and irritated, just like chapped lips. Learn why it happens, how it affects your hair health, and how to restore balance with Cosh’s Revive treatment and The Rootcoz serum.