Most dry shampoos on the market utilize aerosol propellants. When spraying them you inhale aerosols, which are tiny droplets that linger in the air. Many aerosol dry shampoos have been found to contain problematic chemicals, such as benzene or strong perfume substances, which are suspected of being endocrine disruptors, harming the environment, irritating the respiratory tract, and increasing the risk of contact dermatitis.This is why we have developed a non-aerosol dry shampoo powder without perfume. Refresh Powder Dry Shampoo is formulated with 99% natural ingredients, including organic aloe vera and oat extract.