According to Refinery29, "Dry shampoo is key for tackling greasy roots and adding a little much-needed bounce to second-day (or third day, or fourth day...) hair, but they don't really cut it when you're trying to make dirty hair smell clean, not just look it." That's why hair mist is a must after using dry shampoo. Unlike perfume, which contains alcohol and causes hair to dry, hair-mist makes hair great and moisturizes it. A great hair mist to try Giorgio Armani Beauty Si Hair Mist.