It's true that dry shampoo can extend the life of your blowout, freshen up second-day hair, and save you hours of styling time each week, but using it too much or too often can lead to scalp conditions and hair loss. Leftover particles can stay on the scalp, creating buildup and potentially blocking hair follicles. It's also going to soak up oil both on the strands and at the root, so if your hair is already on the dry side, focus your spritz on just the roots. "If you also have any scalp issues like irritation or a bad case of dandruff, then I would advise skipping the dry shampoo altogether. It can congest your skin and irritate it more," says Mills.
