Fact: People with persistent dandruff report insecurity, low confidence in social interactions, and even anxiety and a sense of helplessness.2 The stress of dandruff can actually trigger more dandruff, creating a vicious cycle.3 The good news: you can still fight it. The NEW Head & Shoulders Clinical Dandruff Defense Collections offer up to 100% dandruff protection.? The collections also relieve the white flakes and red, itchy scalp associated with dandruff. They include dermatologist-tested shampoos and shampoo + conditioner 2-in-1 combos that are powered by the prescription-strength? ingredient 1% selenium sulfide. This trusted anti-dandruff agent, with 35% more dandruff-fighting power,* helps relieve your symptoms so you can focus on the things that matter.