Clean hair and healthy scalp.Light-as-air dry cleansing technology for scalp and hair that feel just washed. This healthy scalp dry shampoo is clinically proven to not clog pores or leave a white residue. No more dry, powdery roots or gritty buildup. N .4D is proven to leave hair looking and feeling clean.Benefits: neutralizes odor-causing pollutants and impurities, creates airy lift and soft hair, detoxifies scalp, no grit or powdery residue, no clogged pores.