 Can dry shampoo really make your hair fall out? Unfortunately, yeah. The ingredients that make up most dry shampoos weaken and weigh down your hair, which can cause it to three times more shedding. But that's not all. Because you're not actually cleaning your hair, overuse can clog the hair follicle, leading to acne, dandruff, or a nasty infection. But you don't need to completely check it out. Using it once or twice a week on completely dry hair should be fine. You can also use a healthier alternative like cornstarch mixed with cocoa powder. Or you could just wash your hair a little more often.