Okay so. You would think that anti-dandruff shampoo would only benefit people who suffer from a flaky scalp but according to the experts, everyone should give it a go. We know it might sound surprising but the science behind the recommendation makes a lot of sense. Anti-dandruff shampoo contains zinc pyrithione and/or salicylic acid, which wipe your hair follicles completely clean. If you've ever washed your hair and got out of the shower to find that it still feels sticky and unmanageable, product build-up is usually the culprit. If squeaky clean hair isn't enough of an incentive to give this idea a go, then this expert advice might persuade you. Neil Sadick, director of the Sadick Research Group for understanding and treating hair loss, told Allure that keeping hair clean is essential to combat thinning hair. "Keeping the hair follicles clean prevents occlusion and inflammation that leads to thinning hair later in life". If you really want to keep using your favourite shampoo, he advises using both. "You can alternate anti-dandruff shampoo with your own shampoo or use one on top of the other," said Neil.